20005642

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:837

約数の個数: 16

約数和(自身を含む): 30523680

約数和(自身を除く): 10518038

約数列:

[1, 2, 109, 163, 218, 326, 563, 1126, 17767, 35534, 61367, 91769, 122734, 183538, 10002821, 20005642]

約数ペア:

[(1, 20005642), (2, 10002821), (109, 183538), (163, 122734), (218, 91769), (326, 61367), (563, 35534), (1126, 17767)]