15663865225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{255841}}^1$

素因数の和:255961

約数の個数: 24

約数和(自身を含む): 20303621120

約数和(自身を除く): 4639755895

約数列:

[1, 5, 25, 31, 79, 155, 395, 775, 1975, 2449, 12245, 61225, 255841, 1279205, 6396025, 7931071, 20211439, 39655355, 101057195, 198276775, 505285975, 626554609, 3132773045, 15663865225]

約数ペア:

[(1, 15663865225), (5, 3132773045), (25, 626554609), (31, 505285975), (79, 198276775), (155, 101057195), (395, 39655355), (775, 20211439), (1975, 7931071), (2449, 6396025), (12245, 1279205), (61225, 255841)]