64468625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{409}}^1$

素因数の和:534

約数の個数: 32

約数和(自身を含む): 87753120

約数和(自身を除く): 23284495

約数列:

[1, 5, 13, 25, 65, 97, 125, 325, 409, 485, 1261, 1625, 2045, 2425, 5317, 6305, 10225, 12125, 26585, 31525, 39673, 51125, 132925, 157625, 198365, 515749, 664625, 991825, 2578745, 4959125, 12893725, 64468625]

約数ペア:

[(1, 64468625), (5, 12893725), (13, 4959125), (25, 2578745), (65, 991825), (97, 664625), (125, 515749), (325, 198365), (409, 157625), (485, 132925), (1261, 51125), (1625, 39673), (2045, 31525), (2425, 26585), (5317, 12125), (6305, 10225)]