20625020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3449}}^1$

素因数の和:3494

約数の個数: 48

約数和(自身を含む): 48686400

約数和(自身を除く): 28061380

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3449, 5980, 6898, 13796, 17245, 34490, 44837, 68980, 79327, 89674, 158654, 179348, 224185, 317308, 396635, 448370, 793270, 896740, 1031251, 1586540, 2062502, 4125004, 5156255, 10312510, 20625020]

約数ペア:

[(1, 20625020), (2, 10312510), (4, 5156255), (5, 4125004), (10, 2062502), (13, 1586540), (20, 1031251), (23, 896740), (26, 793270), (46, 448370), (52, 396635), (65, 317308), (92, 224185), (115, 179348), (130, 158654), (230, 89674), (260, 79327), (299, 68980), (460, 44837), (598, 34490), (1196, 17245), (1495, 13796), (2990, 6898), (3449, 5980)]