18892540

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{1531}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 39764592

約数和(自身を除く): 20872052

約数列:

[1, 2, 4, 5, 10, 20, 617, 1234, 1531, 2468, 3062, 3085, 6124, 6170, 7655, 12340, 15310, 30620, 944627, 1889254, 3778508, 4723135, 9446270, 18892540]

約数ペア:

[(1, 18892540), (2, 9446270), (4, 4723135), (5, 3778508), (10, 1889254), (20, 944627), (617, 30620), (1234, 15310), (1531, 12340), (2468, 7655), (3062, 6170), (3085, 6124)]