123725680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{118967}}^1$

素因数の和:118993

約数の個数: 40

約数和(自身を含む): 309792672

約数和(自身を除く): 186066992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 118967, 237934, 475868, 594835, 951736, 1189670, 1546571, 1903472, 2379340, 3093142, 4758680, 6186284, 7732855, 9517360, 12372568, 15465710, 24745136, 30931420, 61862840, 123725680]

約数ペア:

[(1, 123725680), (2, 61862840), (4, 30931420), (5, 24745136), (8, 15465710), (10, 12372568), (13, 9517360), (16, 7732855), (20, 6186284), (26, 4758680), (40, 3093142), (52, 2379340), (65, 1903472), (80, 1546571), (104, 1189670), (130, 951736), (208, 594835), (260, 475868), (520, 237934), (1040, 118967)]