30991285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 42547680

約数和(自身を除く): 11556395

約数列:

[1, 5, 13, 29, 41, 65, 145, 205, 377, 401, 533, 1189, 1885, 2005, 2665, 5213, 5945, 11629, 15457, 16441, 26065, 58145, 77285, 82205, 151177, 213733, 476789, 755885, 1068665, 2383945, 6198257, 30991285]

約数ペア:

[(1, 30991285), (5, 6198257), (13, 2383945), (29, 1068665), (41, 755885), (65, 476789), (145, 213733), (205, 151177), (377, 82205), (401, 77285), (533, 58145), (1189, 26065), (1885, 16441), (2005, 15457), (2665, 11629), (5213, 5945)]