259938640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{10867}}^1$

素因数の和:10916

約数の個数: 80

約数和(自身を含む): 679206528

約数和(自身を除く): 419267888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1840, 2392, 2990, 4784, 5980, 10867, 11960, 21734, 23920, 43468, 54335, 86936, 108670, 141271, 173872, 217340, 249941, 282542, 434680, 499882, 565084, 706355, 869360, 999764, 1130168, 1249705, 1412710, 1999528, 2260336, 2499410, 2825420, 3249233, 3999056, 4998820, 5650840, 6498466, 9997640, 11301680, 12996932, 16246165, 19995280, 25993864, 32492330, 51987728, 64984660, 129969320, 259938640]

約数ペア:

[(1, 259938640), (2, 129969320), (4, 64984660), (5, 51987728), (8, 32492330), (10, 25993864), (13, 19995280), (16, 16246165), (20, 12996932), (23, 11301680), (26, 9997640), (40, 6498466), (46, 5650840), (52, 4998820), (65, 3999056), (80, 3249233), (92, 2825420), (104, 2499410), (115, 2260336), (130, 1999528), (184, 1412710), (208, 1249705), (230, 1130168), (260, 999764), (299, 869360), (368, 706355), (460, 565084), (520, 499882), (598, 434680), (920, 282542), (1040, 249941), (1196, 217340), (1495, 173872), (1840, 141271), (2392, 108670), (2990, 86936), (4784, 54335), (5980, 43468), (10867, 23920), (11960, 21734)]