15825620

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1223}}^1$

素因数の和:1879

約数の個数: 24

約数和(自身を含む): 33312384

約数和(自身を除く): 17486764

約数列:

[1, 2, 4, 5, 10, 20, 647, 1223, 1294, 2446, 2588, 3235, 4892, 6115, 6470, 12230, 12940, 24460, 791281, 1582562, 3165124, 3956405, 7912810, 15825620]

約数ペア:

[(1, 15825620), (2, 7912810), (4, 3956405), (5, 3165124), (10, 1582562), (20, 791281), (647, 24460), (1223, 12940), (1294, 12230), (2446, 6470), (2588, 6115), (3235, 4892)]