19896540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331609}}^1$

素因数の和:331621

約数の個数: 24

約数和(自身を含む): 55710480

約数和(自身を除く): 35813940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331609, 663218, 994827, 1326436, 1658045, 1989654, 3316090, 3979308, 4974135, 6632180, 9948270, 19896540]

約数ペア:

[(1, 19896540), (2, 9948270), (3, 6632180), (4, 4974135), (5, 3979308), (6, 3316090), (10, 1989654), (12, 1658045), (15, 1326436), (20, 994827), (30, 663218), (60, 331609)]