25695640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10531}}^1$

素因数の和:10603

約数の個数: 32

約数和(自身を含む): 58768560

約数和(自身を除く): 33072920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10531, 21062, 42124, 52655, 84248, 105310, 210620, 421240, 642391, 1284782, 2569564, 3211955, 5139128, 6423910, 12847820, 25695640]

約数ペア:

[(1, 25695640), (2, 12847820), (4, 6423910), (5, 5139128), (8, 3211955), (10, 2569564), (20, 1284782), (40, 642391), (61, 421240), (122, 210620), (244, 105310), (305, 84248), (488, 52655), (610, 42124), (1220, 21062), (2440, 10531)]