15691189820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12861631}}^1$

素因数の和:12861701

約数の個数: 24

約数和(自身を含む): 33491689728

約数和(自身を除く): 17800499908

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 12861631, 25723262, 51446524, 64308155, 128616310, 257232620, 784559491, 1569118982, 3138237964, 3922797455, 7845594910, 15691189820]

約数ペア:

[(1, 15691189820), (2, 7845594910), (4, 3922797455), (5, 3138237964), (10, 1569118982), (20, 784559491), (61, 257232620), (122, 128616310), (244, 64308155), (305, 51446524), (610, 25723262), (1220, 12861631)]