81491760

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:105

約数の個数: 480

約数和(自身を含む): 352834560

約数和(自身を除く): 271342800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 23, 24, 28, 30, 35, 36, 37, 38, 40, 42, 45, 46, 48, 56, 57, 60, 63, 69, 70, 72, 74, 76, 80, 84, 90, 92, 95, 105, 111, 112, 114, 115, 120, 126, 133, 138, 140, 144, 148, 152, 161, 168, 171, 180, 184, 185, 190, 207, 210, 222, 228, 230, 240, 252, 259, 266, 276, 280, 285, 296, 304, 315, 322, 333, 336, 342, 345, 360, 368, 370, 380, 399, 414, 420, 437, 444, 456, 460, 483, 504, 518, 532, 552, 555, 560, 570, 592, 630, 644, 665, 666, 684, 690, 703, 720, 740, 760, 777, 798, 805, 828, 840, 851, 855, 874, 888, 912, 920, 966, 1008, 1035, 1036, 1064, 1104, 1110, 1140, 1197, 1260, 1288, 1295, 1311, 1330, 1332, 1368, 1380, 1406, 1449, 1480, 1520, 1554, 1596, 1610, 1656, 1665, 1680, 1702, 1710, 1748, 1776, 1840, 1932, 1995, 2070, 2072, 2109, 2128, 2185, 2220, 2280, 2331, 2394, 2415, 2520, 2553, 2576, 2590, 2622, 2660, 2664, 2736, 2760, 2812, 2898, 2960, 3059, 3108, 3192, 3220, 3312, 3330, 3404, 3420, 3496, 3515, 3864, 3885, 3933, 3990, 4140, 4144, 4218, 4255, 4370, 4440, 4560, 4662, 4788, 4830, 4921, 5040, 5106, 5180, 5244, 5320, 5328, 5520, 5624, 5796, 5957, 5985, 6118, 6216, 6327, 6384, 6440, 6555, 6660, 6808, 6840, 6992, 7030, 7245, 7659, 7728, 7770, 7866, 7980, 8280, 8436, 8510, 8740, 8880, 9177, 9324, 9576, 9660, 9842, 10212, 10360, 10488, 10545, 10640, 11248, 11592, 11655, 11914, 11970, 12236, 12432, 12654, 12765, 12880, 13110, 13320, 13616, 13680, 14060, 14490, 14763, 15295, 15318, 15540, 15732, 15960, 16169, 16560, 16872, 17020, 17480, 17871, 18354, 18648, 19152, 19320, 19665, 19684, 20424, 20720, 20976, 21090, 23184, 23310, 23828, 23940, 24472, 24605, 25308, 25530, 26220, 26640, 27531, 28120, 28980, 29526, 29785, 30590, 30636, 31080, 31464, 31635, 31920, 32338, 33744, 34040, 34960, 35742, 36708, 37296, 38295, 38640, 39330, 39368, 40848, 42180, 44289, 45885, 46620, 47656, 47880, 48507, 48944, 49210, 50616, 51060, 52440, 53613, 55062, 56240, 57960, 59052, 59570, 61180, 61272, 62160, 62928, 63270, 64676, 68080, 71484, 73416, 73815, 76590, 78660, 78736, 80845, 84360, 88578, 89355, 91770, 93240, 95312, 95760, 97014, 98420, 101232, 102120, 104880, 107226, 110124, 113183, 115920, 118104, 119140, 122360, 122544, 126540, 129352, 137655, 142968, 145521, 146832, 147630, 153180, 157320, 161690, 168720, 177156, 178710, 183540, 186480, 194028, 196840, 204240, 214452, 220248, 221445, 226366, 236208, 238280, 242535, 244720, 253080, 258704, 268065, 275310, 285936, 291042, 295260, 306360, 314640, 323380, 339549, 354312, 357420, 367080, 388056, 393680, 428904, 440496, 442890, 452732, 476560, 485070, 506160, 536130, 550620, 565915, 582084, 590520, 612720, 646760, 679098, 708624, 714840, 727605, 734160, 776112, 857808, 885780, 905464, 970140, 1018647, 1072260, 1101240, 1131830, 1164168, 1181040, 1293520, 1358196, 1429680, 1455210, 1697745, 1771560, 1810928, 1940280, 2037294, 2144520, 2202480, 2263660, 2328336, 2716392, 2910420, 3395490, 3543120, 3880560, 4074588, 4289040, 4527320, 5093235, 5432784, 5820840, 6790980, 8149176, 9054640, 10186470, 11641680, 13581960, 16298352, 20372940, 27163920, 40745880, 81491760]

約数ペア:

[(1, 81491760), (2, 40745880), (3, 27163920), (4, 20372940), (5, 16298352), (6, 13581960), (7, 11641680), (8, 10186470), (9, 9054640), (10, 8149176), (12, 6790980), (14, 5820840), (15, 5432784), (16, 5093235), (18, 4527320), (19, 4289040), (20, 4074588), (21, 3880560), (23, 3543120), (24, 3395490), (28, 2910420), (30, 2716392), (35, 2328336), (36, 2263660), (37, 2202480), (38, 2144520), (40, 2037294), (42, 1940280), (45, 1810928), (46, 1771560), (48, 1697745), (56, 1455210), (57, 1429680), (60, 1358196), (63, 1293520), (69, 1181040), (70, 1164168), (72, 1131830), (74, 1101240), (76, 1072260), (80, 1018647), (84, 970140), (90, 905464), (92, 885780), (95, 857808), (105, 776112), (111, 734160), (112, 727605), (114, 714840), (115, 708624), (120, 679098), (126, 646760), (133, 612720), (138, 590520), (140, 582084), (144, 565915), (148, 550620), (152, 536130), (161, 506160), (168, 485070), (171, 476560), (180, 452732), (184, 442890), (185, 440496), (190, 428904), (207, 393680), (210, 388056), (222, 367080), (228, 357420), (230, 354312), (240, 339549), (252, 323380), (259, 314640), (266, 306360), (276, 295260), (280, 291042), (285, 285936), (296, 275310), (304, 268065), (315, 258704), (322, 253080), (333, 244720), (336, 242535), (342, 238280), (345, 236208), (360, 226366), (368, 221445), (370, 220248), (380, 214452), (399, 204240), (414, 196840), (420, 194028), (437, 186480), (444, 183540), (456, 178710), (460, 177156), (483, 168720), (504, 161690), (518, 157320), (532, 153180), (552, 147630), (555, 146832), (560, 145521), (570, 142968), (592, 137655), (630, 129352), (644, 126540), (665, 122544), (666, 122360), (684, 119140), (690, 118104), (703, 115920), (720, 113183), (740, 110124), (760, 107226), (777, 104880), (798, 102120), (805, 101232), (828, 98420), (840, 97014), (851, 95760), (855, 95312), (874, 93240), (888, 91770), (912, 89355), (920, 88578), (966, 84360), (1008, 80845), (1035, 78736), (1036, 78660), (1064, 76590), (1104, 73815), (1110, 73416), (1140, 71484), (1197, 68080), (1260, 64676), (1288, 63270), (1295, 62928), (1311, 62160), (1330, 61272), (1332, 61180), (1368, 59570), (1380, 59052), (1406, 57960), (1449, 56240), (1480, 55062), (1520, 53613), (1554, 52440), (1596, 51060), (1610, 50616), (1656, 49210), (1665, 48944), (1680, 48507), (1702, 47880), (1710, 47656), (1748, 46620), (1776, 45885), (1840, 44289), (1932, 42180), (1995, 40848), (2070, 39368), (2072, 39330), (2109, 38640), (2128, 38295), (2185, 37296), (2220, 36708), (2280, 35742), (2331, 34960), (2394, 34040), (2415, 33744), (2520, 32338), (2553, 31920), (2576, 31635), (2590, 31464), (2622, 31080), (2660, 30636), (2664, 30590), (2736, 29785), (2760, 29526), (2812, 28980), (2898, 28120), (2960, 27531), (3059, 26640), (3108, 26220), (3192, 25530), (3220, 25308), (3312, 24605), (3330, 24472), (3404, 23940), (3420, 23828), (3496, 23310), (3515, 23184), (3864, 21090), (3885, 20976), (3933, 20720), (3990, 20424), (4140, 19684), (4144, 19665), (4218, 19320), (4255, 19152), (4370, 18648), (4440, 18354), (4560, 17871), (4662, 17480), (4788, 17020), (4830, 16872), (4921, 16560), (5040, 16169), (5106, 15960), (5180, 15732), (5244, 15540), (5320, 15318), (5328, 15295), (5520, 14763), (5624, 14490), (5796, 14060), (5957, 13680), (5985, 13616), (6118, 13320), (6216, 13110), (6327, 12880), (6384, 12765), (6440, 12654), (6555, 12432), (6660, 12236), (6808, 11970), (6840, 11914), (6992, 11655), (7030, 11592), (7245, 11248), (7659, 10640), (7728, 10545), (7770, 10488), (7866, 10360), (7980, 10212), (8280, 9842), (8436, 9660), (8510, 9576), (8740, 9324), (8880, 9177)]