4008980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4889}}^1$

素因数の和:4939

約数の個数: 24

約数和(自身を含む): 8625960

約数和(自身を除く): 4616980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 4889, 9778, 19556, 24445, 48890, 97780, 200449, 400898, 801796, 1002245, 2004490, 4008980]

約数ペア:

[(1, 4008980), (2, 2004490), (4, 1002245), (5, 801796), (10, 400898), (20, 200449), (41, 97780), (82, 48890), (164, 24445), (205, 19556), (410, 9778), (820, 4889)]