257486396

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{977}}^1\times {\mathrm{1607}}^1$

素因数の和:2629

約数の個数: 24

約数和(自身を含む): 462351456

約数和(自身を除く): 204865060

約数列:

[1, 2, 4, 41, 82, 164, 977, 1607, 1954, 3214, 3908, 6428, 40057, 65887, 80114, 131774, 160228, 263548, 1570039, 3140078, 6280156, 64371599, 128743198, 257486396]

約数ペア:

[(1, 257486396), (2, 128743198), (4, 64371599), (41, 6280156), (82, 3140078), (164, 1570039), (977, 263548), (1607, 160228), (1954, 131774), (3214, 80114), (3908, 65887), (6428, 40057)]