640834740

素因数分解:

$2^2\times 3^7\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:80

約数の個数: 576

約数和(自身を含む): 2638379520

約数和(自身を除く): 1997544780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 23, 26, 27, 28, 30, 35, 36, 39, 42, 45, 46, 49, 52, 54, 60, 63, 65, 69, 70, 78, 81, 84, 90, 91, 92, 98, 105, 108, 115, 117, 126, 130, 135, 138, 140, 147, 156, 161, 162, 180, 182, 189, 195, 196, 207, 210, 230, 234, 243, 245, 252, 260, 270, 273, 276, 294, 299, 315, 322, 324, 345, 351, 364, 378, 390, 405, 414, 420, 441, 455, 460, 468, 483, 486, 490, 540, 546, 567, 585, 588, 598, 621, 630, 637, 644, 690, 702, 729, 735, 756, 780, 805, 810, 819, 828, 882, 897, 910, 945, 966, 972, 980, 1035, 1053, 1092, 1127, 1134, 1170, 1196, 1215, 1242, 1260, 1274, 1323, 1365, 1380, 1404, 1449, 1458, 1470, 1495, 1610, 1620, 1638, 1701, 1755, 1764, 1794, 1820, 1863, 1890, 1911, 1932, 2070, 2093, 2106, 2187, 2205, 2254, 2268, 2340, 2415, 2430, 2457, 2484, 2548, 2646, 2691, 2730, 2835, 2898, 2916, 2940, 2990, 3105, 3159, 3185, 3220, 3276, 3381, 3402, 3510, 3588, 3645, 3726, 3780, 3822, 3969, 4095, 4140, 4186, 4212, 4347, 4374, 4410, 4485, 4508, 4830, 4860, 4914, 5103, 5265, 5292, 5382, 5460, 5589, 5635, 5670, 5733, 5796, 5980, 6210, 6279, 6318, 6370, 6615, 6762, 6804, 7020, 7245, 7290, 7371, 7452, 7644, 7938, 8073, 8190, 8372, 8505, 8694, 8748, 8820, 8970, 9315, 9477, 9555, 9660, 9828, 10143, 10206, 10465, 10530, 10764, 10935, 11178, 11270, 11340, 11466, 11907, 12285, 12420, 12558, 12636, 12740, 13041, 13230, 13455, 13524, 14490, 14580, 14651, 14742, 15309, 15795, 15876, 16146, 16380, 16767, 16905, 17010, 17199, 17388, 17940, 18630, 18837, 18954, 19110, 19845, 20286, 20412, 20930, 21060, 21735, 21870, 22113, 22356, 22540, 22932, 23814, 24219, 24570, 25116, 25515, 26082, 26460, 26910, 27945, 28431, 28665, 28980, 29302, 29484, 30429, 30618, 31395, 31590, 32292, 33534, 33810, 34020, 34398, 35721, 36855, 37260, 37674, 37908, 38220, 39123, 39690, 40365, 40572, 41860, 43470, 43740, 43953, 44226, 47385, 47628, 48438, 49140, 50301, 50715, 51030, 51597, 52164, 53820, 55890, 56511, 56862, 57330, 58604, 59535, 60858, 61236, 62790, 63180, 65205, 66339, 67068, 67620, 68796, 71442, 72657, 73255, 73710, 75348, 76545, 78246, 79380, 80730, 83835, 85995, 86940, 87906, 88452, 91287, 94185, 94770, 96876, 100602, 101430, 102060, 103194, 107163, 110565, 111780, 113022, 113724, 114660, 117369, 119070, 121095, 121716, 125580, 130410, 131859, 132678, 142155, 142884, 145314, 146510, 147420, 152145, 153090, 154791, 156492, 161460, 167670, 169533, 171990, 175812, 178605, 182574, 188370, 189540, 195615, 199017, 201204, 202860, 206388, 214326, 217971, 219765, 221130, 226044, 234738, 238140, 242190, 251505, 257985, 260820, 263718, 265356, 273861, 282555, 284310, 290628, 293020, 304290, 306180, 309582, 331695, 335340, 339066, 343980, 352107, 357210, 363285, 365148, 376740, 391230, 395577, 398034, 428652, 435942, 439530, 442260, 456435, 464373, 469476, 484380, 503010, 508599, 515970, 527436, 535815, 547722, 565110, 568620, 586845, 608580, 619164, 653913, 659295, 663390, 678132, 704214, 714420, 726570, 773955, 782460, 791154, 796068, 821583, 847665, 871884, 879060, 912870, 928746, 995085, 1006020, 1017198, 1031940, 1071630, 1089855, 1095444, 1130220, 1173690, 1186731, 1307826, 1318590, 1326780, 1369305, 1393119, 1408428, 1453140, 1525797, 1547910, 1582308, 1643166, 1695330, 1760535, 1825740, 1857492, 1977885, 1990170, 2034396, 2143260, 2179710, 2321865, 2347380, 2373462, 2464749, 2542995, 2615652, 2637180, 2738610, 2786238, 3051594, 3095820, 3269565, 3286332, 3390660, 3521070, 3560193, 3955770, 3980340, 4107915, 4359420, 4577391, 4643730, 4746924, 4929498, 5085990, 5477220, 5572476, 5933655, 6103188, 6539130, 6965595, 7042140, 7120386, 7628985, 7911540, 8215830, 9154782, 9287460, 9858996, 10171980, 10680579, 11867310, 12323745, 13078260, 13931190, 14240772, 15257970, 16431660, 17800965, 18309564, 21361158, 22886955, 23734620, 24647490, 27862380, 30515940, 32041737, 35601930, 42722316, 45773910, 49294980, 53402895, 64083474, 71203860, 91547820, 106805790, 128166948, 160208685, 213611580, 320417370, 640834740]

約数ペア:

[(1, 640834740), (2, 320417370), (3, 213611580), (4, 160208685), (5, 128166948), (6, 106805790), (7, 91547820), (9, 71203860), (10, 64083474), (12, 53402895), (13, 49294980), (14, 45773910), (15, 42722316), (18, 35601930), (20, 32041737), (21, 30515940), (23, 27862380), (26, 24647490), (27, 23734620), (28, 22886955), (30, 21361158), (35, 18309564), (36, 17800965), (39, 16431660), (42, 15257970), (45, 14240772), (46, 13931190), (49, 13078260), (52, 12323745), (54, 11867310), (60, 10680579), (63, 10171980), (65, 9858996), (69, 9287460), (70, 9154782), (78, 8215830), (81, 7911540), (84, 7628985), (90, 7120386), (91, 7042140), (92, 6965595), (98, 6539130), (105, 6103188), (108, 5933655), (115, 5572476), (117, 5477220), (126, 5085990), (130, 4929498), (135, 4746924), (138, 4643730), (140, 4577391), (147, 4359420), (156, 4107915), (161, 3980340), (162, 3955770), (180, 3560193), (182, 3521070), (189, 3390660), (195, 3286332), (196, 3269565), (207, 3095820), (210, 3051594), (230, 2786238), (234, 2738610), (243, 2637180), (245, 2615652), (252, 2542995), (260, 2464749), (270, 2373462), (273, 2347380), (276, 2321865), (294, 2179710), (299, 2143260), (315, 2034396), (322, 1990170), (324, 1977885), (345, 1857492), (351, 1825740), (364, 1760535), (378, 1695330), (390, 1643166), (405, 1582308), (414, 1547910), (420, 1525797), (441, 1453140), (455, 1408428), (460, 1393119), (468, 1369305), (483, 1326780), (486, 1318590), (490, 1307826), (540, 1186731), (546, 1173690), (567, 1130220), (585, 1095444), (588, 1089855), (598, 1071630), (621, 1031940), (630, 1017198), (637, 1006020), (644, 995085), (690, 928746), (702, 912870), (729, 879060), (735, 871884), (756, 847665), (780, 821583), (805, 796068), (810, 791154), (819, 782460), (828, 773955), (882, 726570), (897, 714420), (910, 704214), (945, 678132), (966, 663390), (972, 659295), (980, 653913), (1035, 619164), (1053, 608580), (1092, 586845), (1127, 568620), (1134, 565110), (1170, 547722), (1196, 535815), (1215, 527436), (1242, 515970), (1260, 508599), (1274, 503010), (1323, 484380), (1365, 469476), (1380, 464373), (1404, 456435), (1449, 442260), (1458, 439530), (1470, 435942), (1495, 428652), (1610, 398034), (1620, 395577), (1638, 391230), (1701, 376740), (1755, 365148), (1764, 363285), (1794, 357210), (1820, 352107), (1863, 343980), (1890, 339066), (1911, 335340), (1932, 331695), (2070, 309582), (2093, 306180), (2106, 304290), (2187, 293020), (2205, 290628), (2254, 284310), (2268, 282555), (2340, 273861), (2415, 265356), (2430, 263718), (2457, 260820), (2484, 257985), (2548, 251505), (2646, 242190), (2691, 238140), (2730, 234738), (2835, 226044), (2898, 221130), (2916, 219765), (2940, 217971), (2990, 214326), (3105, 206388), (3159, 202860), (3185, 201204), (3220, 199017), (3276, 195615), (3381, 189540), (3402, 188370), (3510, 182574), (3588, 178605), (3645, 175812), (3726, 171990), (3780, 169533), (3822, 167670), (3969, 161460), (4095, 156492), (4140, 154791), (4186, 153090), (4212, 152145), (4347, 147420), (4374, 146510), (4410, 145314), (4485, 142884), (4508, 142155), (4830, 132678), (4860, 131859), (4914, 130410), (5103, 125580), (5265, 121716), (5292, 121095), (5382, 119070), (5460, 117369), (5589, 114660), (5635, 113724), (5670, 113022), (5733, 111780), (5796, 110565), (5980, 107163), (6210, 103194), (6279, 102060), (6318, 101430), (6370, 100602), (6615, 96876), (6762, 94770), (6804, 94185), (7020, 91287), (7245, 88452), (7290, 87906), (7371, 86940), (7452, 85995), (7644, 83835), (7938, 80730), (8073, 79380), (8190, 78246), (8372, 76545), (8505, 75348), (8694, 73710), (8748, 73255), (8820, 72657), (8970, 71442), (9315, 68796), (9477, 67620), (9555, 67068), (9660, 66339), (9828, 65205), (10143, 63180), (10206, 62790), (10465, 61236), (10530, 60858), (10764, 59535), (10935, 58604), (11178, 57330), (11270, 56862), (11340, 56511), (11466, 55890), (11907, 53820), (12285, 52164), (12420, 51597), (12558, 51030), (12636, 50715), (12740, 50301), (13041, 49140), (13230, 48438), (13455, 47628), (13524, 47385), (14490, 44226), (14580, 43953), (14651, 43740), (14742, 43470), (15309, 41860), (15795, 40572), (15876, 40365), (16146, 39690), (16380, 39123), (16767, 38220), (16905, 37908), (17010, 37674), (17199, 37260), (17388, 36855), (17940, 35721), (18630, 34398), (18837, 34020), (18954, 33810), (19110, 33534), (19845, 32292), (20286, 31590), (20412, 31395), (20930, 30618), (21060, 30429), (21735, 29484), (21870, 29302), (22113, 28980), (22356, 28665), (22540, 28431), (22932, 27945), (23814, 26910), (24219, 26460), (24570, 26082), (25116, 25515)]