20668710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{688957}}^1$

素因数の和:688967

約数の個数: 16

約数和(自身を含む): 49604976

約数和(自身を除く): 28936266

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 688957, 1377914, 2066871, 3444785, 4133742, 6889570, 10334355, 20668710]

約数ペア:

[(1, 20668710), (2, 10334355), (3, 6889570), (5, 4133742), (6, 3444785), (10, 2066871), (15, 1377914), (30, 688957)]