15205420

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1123}}^1$

素因数の和:1809

約数の個数: 24

約数和(自身を含む): 32007024

約数和(自身を除く): 16801604

約数列:

[1, 2, 4, 5, 10, 20, 677, 1123, 1354, 2246, 2708, 3385, 4492, 5615, 6770, 11230, 13540, 22460, 760271, 1520542, 3041084, 3801355, 7602710, 15205420]

約数ペア:

[(1, 15205420), (2, 7602710), (4, 3801355), (5, 3041084), (10, 1520542), (20, 760271), (677, 22460), (1123, 13540), (1354, 11230), (2246, 6770), (2708, 5615), (3385, 4492)]