201357220

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{40111}}^1$

素因数の和:40371

約数の個数: 24

約数和(自身を含む): 424545408

約数和(自身を除く): 223188188

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 40111, 80222, 160444, 200555, 401110, 802220, 10067861, 20135722, 40271444, 50339305, 100678610, 201357220]

約数ペア:

[(1, 201357220), (2, 100678610), (4, 50339305), (5, 40271444), (10, 20135722), (20, 10067861), (251, 802220), (502, 401110), (1004, 200555), (1255, 160444), (2510, 80222), (5020, 40111)]