20659830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{688661}}^1$

素因数の和:688671

約数の個数: 16

約数和(自身を含む): 49583664

約数和(自身を除く): 28923834

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 688661, 1377322, 2065983, 3443305, 4131966, 6886610, 10329915, 20659830]

約数ペア:

[(1, 20659830), (2, 10329915), (3, 6886610), (5, 4131966), (6, 3443305), (10, 2065983), (15, 1377322), (30, 688661)]