208375025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{4013}}^1$

素因数の和:4121

約数の個数: 24

約数和(自身を含む): 270768384

約数和(自身を除く): 62393359

約数列:

[1, 5, 25, 31, 67, 155, 335, 775, 1675, 2077, 4013, 10385, 20065, 51925, 100325, 124403, 268871, 622015, 1344355, 3110075, 6721775, 8335001, 41675005, 208375025]

約数ペア:

[(1, 208375025), (5, 41675005), (25, 8335001), (31, 6721775), (67, 3110075), (155, 1344355), (335, 622015), (775, 268871), (1675, 124403), (2077, 100325), (4013, 51925), (10385, 20065)]