18045940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7457}}^1$

素因数の和:7488

約数の個数: 36

約数和(自身を含む): 41660388

約数和(自身を除く): 23614448

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7457, 14914, 29828, 37285, 74570, 82027, 149140, 164054, 328108, 410135, 820270, 902297, 1640540, 1804594, 3609188, 4511485, 9022970, 18045940]

約数ペア:

[(1, 18045940), (2, 9022970), (4, 4511485), (5, 3609188), (10, 1804594), (11, 1640540), (20, 902297), (22, 820270), (44, 410135), (55, 328108), (110, 164054), (121, 149140), (220, 82027), (242, 74570), (484, 37285), (605, 29828), (1210, 14914), (2420, 7457)]