256136400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{421}}^1$

素因数の和:471

約数の個数: 270

約数和(自身を含む): 964784418

約数和(自身を除く): 708648018

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 30, 36, 39, 40, 45, 48, 50, 52, 60, 65, 72, 75, 78, 80, 90, 100, 104, 117, 120, 130, 144, 150, 156, 169, 180, 195, 200, 208, 225, 234, 240, 260, 300, 312, 325, 338, 360, 390, 400, 421, 450, 468, 507, 520, 585, 600, 624, 650, 676, 720, 780, 842, 845, 900, 936, 975, 1014, 1040, 1170, 1200, 1263, 1300, 1352, 1521, 1560, 1684, 1690, 1800, 1872, 1950, 2028, 2105, 2340, 2526, 2535, 2600, 2704, 2925, 3042, 3120, 3368, 3380, 3600, 3789, 3900, 4056, 4210, 4225, 4680, 5052, 5070, 5200, 5473, 5850, 6084, 6315, 6736, 6760, 7578, 7605, 7800, 8112, 8420, 8450, 9360, 10104, 10140, 10525, 10946, 11700, 12168, 12630, 12675, 13520, 15156, 15210, 15600, 16419, 16840, 16900, 18945, 20208, 20280, 21050, 21892, 23400, 24336, 25260, 25350, 27365, 30312, 30420, 31575, 32838, 33680, 33800, 37890, 38025, 40560, 42100, 43784, 46800, 49257, 50520, 50700, 54730, 60624, 60840, 63150, 65676, 67600, 71149, 75780, 76050, 82095, 84200, 87568, 94725, 98514, 101040, 101400, 109460, 121680, 126300, 131352, 136825, 142298, 151560, 152100, 164190, 168400, 189450, 197028, 202800, 213447, 218920, 246285, 252600, 262704, 273650, 284596, 303120, 304200, 328380, 355745, 378900, 394056, 410475, 426894, 437840, 492570, 505200, 547300, 569192, 608400, 640341, 656760, 711490, 757800, 788112, 820950, 853788, 985140, 1067235, 1094600, 1138384, 1231425, 1280682, 1313520, 1422980, 1515600, 1641900, 1707576, 1778725, 1970280, 2134470, 2189200, 2462850, 2561364, 2845960, 3201705, 3283800, 3415152, 3557450, 3940560, 4268940, 4925700, 5122728, 5336175, 5691920, 6403410, 6567600, 7114900, 8537880, 9851400, 10245456, 10672350, 12806820, 14229800, 16008525, 17075760, 19702800, 21344700, 25613640, 28459600, 32017050, 42689400, 51227280, 64034100, 85378800, 128068200, 256136400]

約数ペア:

[(1, 256136400), (2, 128068200), (3, 85378800), (4, 64034100), (5, 51227280), (6, 42689400), (8, 32017050), (9, 28459600), (10, 25613640), (12, 21344700), (13, 19702800), (15, 17075760), (16, 16008525), (18, 14229800), (20, 12806820), (24, 10672350), (25, 10245456), (26, 9851400), (30, 8537880), (36, 7114900), (39, 6567600), (40, 6403410), (45, 5691920), (48, 5336175), (50, 5122728), (52, 4925700), (60, 4268940), (65, 3940560), (72, 3557450), (75, 3415152), (78, 3283800), (80, 3201705), (90, 2845960), (100, 2561364), (104, 2462850), (117, 2189200), (120, 2134470), (130, 1970280), (144, 1778725), (150, 1707576), (156, 1641900), (169, 1515600), (180, 1422980), (195, 1313520), (200, 1280682), (208, 1231425), (225, 1138384), (234, 1094600), (240, 1067235), (260, 985140), (300, 853788), (312, 820950), (325, 788112), (338, 757800), (360, 711490), (390, 656760), (400, 640341), (421, 608400), (450, 569192), (468, 547300), (507, 505200), (520, 492570), (585, 437840), (600, 426894), (624, 410475), (650, 394056), (676, 378900), (720, 355745), (780, 328380), (842, 304200), (845, 303120), (900, 284596), (936, 273650), (975, 262704), (1014, 252600), (1040, 246285), (1170, 218920), (1200, 213447), (1263, 202800), (1300, 197028), (1352, 189450), (1521, 168400), (1560, 164190), (1684, 152100), (1690, 151560), (1800, 142298), (1872, 136825), (1950, 131352), (2028, 126300), (2105, 121680), (2340, 109460), (2526, 101400), (2535, 101040), (2600, 98514), (2704, 94725), (2925, 87568), (3042, 84200), (3120, 82095), (3368, 76050), (3380, 75780), (3600, 71149), (3789, 67600), (3900, 65676), (4056, 63150), (4210, 60840), (4225, 60624), (4680, 54730), (5052, 50700), (5070, 50520), (5200, 49257), (5473, 46800), (5850, 43784), (6084, 42100), (6315, 40560), (6736, 38025), (6760, 37890), (7578, 33800), (7605, 33680), (7800, 32838), (8112, 31575), (8420, 30420), (8450, 30312), (9360, 27365), (10104, 25350), (10140, 25260), (10525, 24336), (10946, 23400), (11700, 21892), (12168, 21050), (12630, 20280), (12675, 20208), (13520, 18945), (15156, 16900), (15210, 16840), (15600, 16419)]