18855773360

素因数分解:

$2^4\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{184571}}^1$

素因数の和:185861

約数の個数: 40

約数和(自身を含む): 43874240976

約数和(自身を除く): 25018467616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1277, 2554, 5108, 6385, 10216, 12770, 20432, 25540, 51080, 102160, 184571, 369142, 738284, 922855, 1476568, 1845710, 2953136, 3691420, 7382840, 14765680, 235697167, 471394334, 942788668, 1178485835, 1885577336, 2356971670, 3771154672, 4713943340, 9427886680, 18855773360]

約数ペア:

[(1, 18855773360), (2, 9427886680), (4, 4713943340), (5, 3771154672), (8, 2356971670), (10, 1885577336), (16, 1178485835), (20, 942788668), (40, 471394334), (80, 235697167), (1277, 14765680), (2554, 7382840), (5108, 3691420), (6385, 2953136), (10216, 1845710), (12770, 1476568), (20432, 922855), (25540, 738284), (51080, 369142), (102160, 184571)]