1268278640

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{2749}}^1$

素因数の和:2914

約数の個数: 80

約数和(自身を含む): 3028080000

約数和(自身を除く): 1759801360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 79, 80, 146, 158, 292, 316, 365, 395, 584, 632, 730, 790, 1168, 1264, 1460, 1580, 2749, 2920, 3160, 5498, 5767, 5840, 6320, 10996, 11534, 13745, 21992, 23068, 27490, 28835, 43984, 46136, 54980, 57670, 92272, 109960, 115340, 200677, 217171, 219920, 230680, 401354, 434342, 461360, 802708, 868684, 1003385, 1085855, 1605416, 1737368, 2006770, 2171710, 3210832, 3474736, 4013540, 4343420, 8027080, 8686840, 15853483, 16054160, 17373680, 31706966, 63413932, 79267415, 126827864, 158534830, 253655728, 317069660, 634139320, 1268278640]

約数ペア:

[(1, 1268278640), (2, 634139320), (4, 317069660), (5, 253655728), (8, 158534830), (10, 126827864), (16, 79267415), (20, 63413932), (40, 31706966), (73, 17373680), (79, 16054160), (80, 15853483), (146, 8686840), (158, 8027080), (292, 4343420), (316, 4013540), (365, 3474736), (395, 3210832), (584, 2171710), (632, 2006770), (730, 1737368), (790, 1605416), (1168, 1085855), (1264, 1003385), (1460, 868684), (1580, 802708), (2749, 461360), (2920, 434342), (3160, 401354), (5498, 230680), (5767, 219920), (5840, 217171), (6320, 200677), (10996, 115340), (11534, 109960), (13745, 92272), (21992, 57670), (23068, 54980), (27490, 46136), (28835, 43984)]