178002890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{3449}}^1$

素因数の和:3866

約数の個数: 32

約数和(自身を含む): 346021200

約数和(自身を除く): 168018310

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 397, 794, 1985, 3449, 3970, 5161, 6898, 10322, 17245, 25805, 34490, 44837, 51610, 89674, 224185, 448370, 1369253, 2738506, 6846265, 13692530, 17800289, 35600578, 89001445, 178002890]

約数ペア:

[(1, 178002890), (2, 89001445), (5, 35600578), (10, 17800289), (13, 13692530), (26, 6846265), (65, 2738506), (130, 1369253), (397, 448370), (794, 224185), (1985, 89674), (3449, 51610), (3970, 44837), (5161, 34490), (6898, 25805), (10322, 17245)]