31258370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21859}}^1$

素因数の和:21890

約数の個数: 32

約数和(自身を含む): 66104640

約数和(自身を除く): 34846270

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 21859, 43718, 109295, 218590, 240449, 284167, 480898, 568334, 1202245, 1420835, 2404490, 2841670, 3125837, 6251674, 15629185, 31258370]

約数ペア:

[(1, 31258370), (2, 15629185), (5, 6251674), (10, 3125837), (11, 2841670), (13, 2404490), (22, 1420835), (26, 1202245), (55, 568334), (65, 480898), (110, 284167), (130, 240449), (143, 218590), (286, 109295), (715, 43718), (1430, 21859)]