20020155

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31039}}^1$

素因数の和:31090

約数の個数: 16

約数和(自身を含む): 32778240

約数和(自身を除く): 12758085

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31039, 93117, 155195, 465585, 1334677, 4004031, 6673385, 20020155]

約数ペア:

[(1, 20020155), (3, 6673385), (5, 4004031), (15, 1334677), (43, 465585), (129, 155195), (215, 93117), (645, 31039)]