20507812

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1319}}^1$

素因数の和:1372

約数の個数: 36

約数和(自身を含む): 40582080

約数和(自身を除く): 20074268

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 169, 299, 338, 598, 676, 1196, 1319, 2638, 3887, 5276, 7774, 15548, 17147, 30337, 34294, 60674, 68588, 121348, 222911, 394381, 445822, 788762, 891644, 1577524, 5126953, 10253906, 20507812]

約数ペア:

[(1, 20507812), (2, 10253906), (4, 5126953), (13, 1577524), (23, 891644), (26, 788762), (46, 445822), (52, 394381), (92, 222911), (169, 121348), (299, 68588), (338, 60674), (598, 34294), (676, 30337), (1196, 17147), (1319, 15548), (2638, 7774), (3887, 5276)]