18100780

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2521}}^1$

素因数の和:2889

約数の個数: 24

約数和(自身を含む): 38132640

約数和(自身を除く): 20031860

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2521, 3590, 5042, 7180, 10084, 12605, 25210, 50420, 905039, 1810078, 3620156, 4525195, 9050390, 18100780]

約数ペア:

[(1, 18100780), (2, 9050390), (4, 4525195), (5, 3620156), (10, 1810078), (20, 905039), (359, 50420), (718, 25210), (1436, 12605), (1795, 10084), (2521, 7180), (3590, 5042)]