20261690

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3889}}^1$

素因数の和:4417

約数の個数: 16

約数和(自身を含む): 36550440

約数和(自身を除く): 16288750

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 3889, 5210, 7778, 19445, 38890, 2026169, 4052338, 10130845, 20261690]

約数ペア:

[(1, 20261690), (2, 10130845), (5, 4052338), (10, 2026169), (521, 38890), (1042, 19445), (2605, 7778), (3889, 5210)]