166820875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 225650880

約数和(自身を除く): 58830005

約数列:

[1, 5, 13, 25, 65, 125, 251, 325, 409, 1255, 1625, 2045, 3263, 5317, 6275, 10225, 16315, 26585, 31375, 51125, 81575, 102659, 132925, 407875, 513295, 664625, 1334567, 2566475, 6672835, 12832375, 33364175, 166820875]

約数ペア:

[(1, 166820875), (5, 33364175), (13, 12832375), (25, 6672835), (65, 2566475), (125, 1334567), (251, 664625), (325, 513295), (409, 407875), (1255, 132925), (1625, 102659), (2045, 81575), (3263, 51125), (5317, 31375), (6275, 26585), (10225, 16315)]