1291406975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{4231}}^1$

素因数の和:4691

約数の個数: 24

約数和(自身を含む): 1660890720

約数和(自身を除く): 369483745

約数列:

[1, 5, 25, 29, 145, 421, 725, 2105, 4231, 10525, 12209, 21155, 61045, 105775, 122699, 305225, 613495, 1781251, 3067475, 8906255, 44531275, 51656279, 258281395, 1291406975]

約数ペア:

[(1, 1291406975), (5, 258281395), (25, 51656279), (29, 44531275), (145, 8906255), (421, 3067475), (725, 1781251), (2105, 613495), (4231, 305225), (10525, 122699), (12209, 105775), (21155, 61045)]