245281238

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 389173248

約数和(自身を除く): 143892010

約数列:

[1, 2, 31, 62, 67, 134, 137, 274, 431, 862, 2077, 4154, 4247, 8494, 9179, 13361, 18358, 26722, 28877, 57754, 59047, 118094, 284549, 569098, 895187, 1790374, 1830457, 3660914, 3956149, 7912298, 122640619, 245281238]

約数ペア:

[(1, 245281238), (2, 122640619), (31, 7912298), (62, 3956149), (67, 3660914), (134, 1830457), (137, 1790374), (274, 895187), (431, 569098), (862, 284549), (2077, 118094), (4154, 59047), (4247, 57754), (8494, 28877), (9179, 26722), (13361, 18358)]