25465640

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1381}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 57463560

約数和(自身を除く): 31997920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1381, 1844, 2305, 2762, 3688, 4610, 5524, 6905, 9220, 11048, 13810, 18440, 27620, 55240, 636641, 1273282, 2546564, 3183205, 5093128, 6366410, 12732820, 25465640]

約数ペア:

[(1, 25465640), (2, 12732820), (4, 6366410), (5, 5093128), (8, 3183205), (10, 2546564), (20, 1273282), (40, 636641), (461, 55240), (922, 27620), (1381, 18440), (1844, 13810), (2305, 11048), (2762, 9220), (3688, 6905), (4610, 5524)]