256437720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^2$

素因数の和:104

約数の個数: 432

約数和(自身を含む): 1084290480

約数和(自身を除く): 827852760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 29, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 58, 60, 63, 66, 70, 72, 77, 84, 87, 88, 90, 99, 105, 110, 116, 120, 121, 126, 132, 140, 145, 154, 165, 168, 174, 180, 198, 203, 210, 220, 231, 232, 242, 252, 261, 264, 280, 290, 308, 315, 319, 330, 348, 360, 363, 385, 396, 406, 420, 435, 440, 462, 484, 495, 504, 522, 580, 605, 609, 616, 630, 638, 660, 693, 696, 726, 770, 792, 812, 840, 841, 847, 870, 924, 957, 968, 990, 1015, 1044, 1089, 1155, 1160, 1210, 1218, 1260, 1276, 1305, 1320, 1386, 1452, 1540, 1595, 1624, 1682, 1694, 1740, 1815, 1827, 1848, 1914, 1980, 2030, 2088, 2178, 2233, 2310, 2420, 2436, 2520, 2523, 2541, 2552, 2610, 2772, 2871, 2904, 3045, 3080, 3190, 3364, 3388, 3465, 3480, 3509, 3630, 3654, 3828, 3960, 4060, 4205, 4235, 4356, 4466, 4620, 4785, 4840, 4872, 5046, 5082, 5220, 5445, 5544, 5742, 5887, 6090, 6380, 6699, 6728, 6776, 6930, 7018, 7260, 7308, 7569, 7623, 7656, 8120, 8410, 8470, 8712, 8932, 9135, 9240, 9251, 9570, 10092, 10164, 10440, 10527, 10890, 11165, 11484, 11774, 12180, 12615, 12705, 12760, 13398, 13860, 14036, 14355, 14520, 14616, 15138, 15246, 16820, 16940, 17545, 17661, 17864, 18270, 18502, 19140, 20097, 20184, 20328, 21054, 21780, 22330, 22968, 23548, 24360, 24563, 25230, 25410, 26796, 27720, 27753, 28072, 28710, 29435, 30276, 30492, 31581, 33495, 33640, 33880, 35090, 35322, 36540, 37004, 37845, 38115, 38280, 40194, 42108, 43560, 44660, 46255, 47096, 49126, 50460, 50820, 52635, 52983, 53592, 55506, 57420, 58870, 60552, 60984, 63162, 64757, 66990, 70180, 70644, 73080, 73689, 74008, 75690, 76230, 80388, 83259, 84216, 88305, 89320, 92510, 98252, 100485, 100920, 101640, 101761, 105270, 105966, 111012, 114840, 117740, 122815, 126324, 129514, 133980, 138765, 140360, 141288, 147378, 151380, 152460, 157905, 160776, 166518, 176610, 185020, 194271, 196504, 200970, 203522, 210540, 211932, 221067, 222024, 235480, 245630, 252648, 259028, 264915, 267960, 277530, 294756, 302760, 304920, 305283, 315810, 323785, 333036, 353220, 368445, 370040, 388542, 401940, 407044, 416295, 421080, 423864, 442134, 491260, 508805, 518056, 529830, 555060, 582813, 589512, 610566, 631620, 647570, 666072, 706440, 712327, 736890, 777084, 803880, 814088, 832590, 884268, 915849, 971355, 982520, 1017610, 1059660, 1105335, 1110120, 1165626, 1221132, 1263240, 1295140, 1424654, 1473780, 1526415, 1554168, 1665180, 1768536, 1831698, 1942710, 2035220, 2119320, 2136981, 2210670, 2331252, 2442264, 2590280, 2849308, 2914065, 2947560, 3052830, 3330360, 3561635, 3663396, 3885420, 4070440, 4273962, 4421340, 4579245, 4662504, 5698616, 5828130, 6105660, 6410943, 7123270, 7326792, 7770840, 8547924, 8842680, 9158490, 10684905, 11656260, 12211320, 12821886, 14246540, 17095848, 18316980, 21369810, 23312520, 25643772, 28493080, 32054715, 36633960, 42739620, 51287544, 64109430, 85479240, 128218860, 256437720]

約数ペア:

[(1, 256437720), (2, 128218860), (3, 85479240), (4, 64109430), (5, 51287544), (6, 42739620), (7, 36633960), (8, 32054715), (9, 28493080), (10, 25643772), (11, 23312520), (12, 21369810), (14, 18316980), (15, 17095848), (18, 14246540), (20, 12821886), (21, 12211320), (22, 11656260), (24, 10684905), (28, 9158490), (29, 8842680), (30, 8547924), (33, 7770840), (35, 7326792), (36, 7123270), (40, 6410943), (42, 6105660), (44, 5828130), (45, 5698616), (55, 4662504), (56, 4579245), (58, 4421340), (60, 4273962), (63, 4070440), (66, 3885420), (70, 3663396), (72, 3561635), (77, 3330360), (84, 3052830), (87, 2947560), (88, 2914065), (90, 2849308), (99, 2590280), (105, 2442264), (110, 2331252), (116, 2210670), (120, 2136981), (121, 2119320), (126, 2035220), (132, 1942710), (140, 1831698), (145, 1768536), (154, 1665180), (165, 1554168), (168, 1526415), (174, 1473780), (180, 1424654), (198, 1295140), (203, 1263240), (210, 1221132), (220, 1165626), (231, 1110120), (232, 1105335), (242, 1059660), (252, 1017610), (261, 982520), (264, 971355), (280, 915849), (290, 884268), (308, 832590), (315, 814088), (319, 803880), (330, 777084), (348, 736890), (360, 712327), (363, 706440), (385, 666072), (396, 647570), (406, 631620), (420, 610566), (435, 589512), (440, 582813), (462, 555060), (484, 529830), (495, 518056), (504, 508805), (522, 491260), (580, 442134), (605, 423864), (609, 421080), (616, 416295), (630, 407044), (638, 401940), (660, 388542), (693, 370040), (696, 368445), (726, 353220), (770, 333036), (792, 323785), (812, 315810), (840, 305283), (841, 304920), (847, 302760), (870, 294756), (924, 277530), (957, 267960), (968, 264915), (990, 259028), (1015, 252648), (1044, 245630), (1089, 235480), (1155, 222024), (1160, 221067), (1210, 211932), (1218, 210540), (1260, 203522), (1276, 200970), (1305, 196504), (1320, 194271), (1386, 185020), (1452, 176610), (1540, 166518), (1595, 160776), (1624, 157905), (1682, 152460), (1694, 151380), (1740, 147378), (1815, 141288), (1827, 140360), (1848, 138765), (1914, 133980), (1980, 129514), (2030, 126324), (2088, 122815), (2178, 117740), (2233, 114840), (2310, 111012), (2420, 105966), (2436, 105270), (2520, 101761), (2523, 101640), (2541, 100920), (2552, 100485), (2610, 98252), (2772, 92510), (2871, 89320), (2904, 88305), (3045, 84216), (3080, 83259), (3190, 80388), (3364, 76230), (3388, 75690), (3465, 74008), (3480, 73689), (3509, 73080), (3630, 70644), (3654, 70180), (3828, 66990), (3960, 64757), (4060, 63162), (4205, 60984), (4235, 60552), (4356, 58870), (4466, 57420), (4620, 55506), (4785, 53592), (4840, 52983), (4872, 52635), (5046, 50820), (5082, 50460), (5220, 49126), (5445, 47096), (5544, 46255), (5742, 44660), (5887, 43560), (6090, 42108), (6380, 40194), (6699, 38280), (6728, 38115), (6776, 37845), (6930, 37004), (7018, 36540), (7260, 35322), (7308, 35090), (7569, 33880), (7623, 33640), (7656, 33495), (8120, 31581), (8410, 30492), (8470, 30276), (8712, 29435), (8932, 28710), (9135, 28072), (9240, 27753), (9251, 27720), (9570, 26796), (10092, 25410), (10164, 25230), (10440, 24563), (10527, 24360), (10890, 23548), (11165, 22968), (11484, 22330), (11774, 21780), (12180, 21054), (12615, 20328), (12705, 20184), (12760, 20097), (13398, 19140), (13860, 18502), (14036, 18270), (14355, 17864), (14520, 17661), (14616, 17545), (15138, 16940), (15246, 16820)]