18698740

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1381}}^1$

素因数の和:2067

約数の個数: 24

約数和(自身を含む): 39353832

約数和(自身を除く): 20655092

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 1381, 2708, 2762, 3385, 5524, 6770, 6905, 13540, 13810, 27620, 934937, 1869874, 3739748, 4674685, 9349370, 18698740]

約数ペア:

[(1, 18698740), (2, 9349370), (4, 4674685), (5, 3739748), (10, 1869874), (20, 934937), (677, 27620), (1354, 13810), (1381, 13540), (2708, 6905), (2762, 6770), (3385, 5524)]