18458960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17749}}^1$

素因数の和:17775

約数の個数: 40

約数和(自身を含む): 46221000

約数和(自身を除く): 27762040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17749, 35498, 70996, 88745, 141992, 177490, 230737, 283984, 354980, 461474, 709960, 922948, 1153685, 1419920, 1845896, 2307370, 3691792, 4614740, 9229480, 18458960]

約数ペア:

[(1, 18458960), (2, 9229480), (4, 4614740), (5, 3691792), (8, 2307370), (10, 1845896), (13, 1419920), (16, 1153685), (20, 922948), (26, 709960), (40, 461474), (52, 354980), (65, 283984), (80, 230737), (104, 177490), (130, 141992), (208, 88745), (260, 70996), (520, 35498), (1040, 17749)]