20034320

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1123}}^1$

素因数の和:1359

約数の個数: 40

約数和(自身を含む): 46830336

約数和(自身を除く): 26796016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1123, 1784, 2230, 2246, 3568, 4460, 4492, 5615, 8920, 8984, 11230, 17840, 17968, 22460, 44920, 89840, 250429, 500858, 1001716, 1252145, 2003432, 2504290, 4006864, 5008580, 10017160, 20034320]

約数ペア:

[(1, 20034320), (2, 10017160), (4, 5008580), (5, 4006864), (8, 2504290), (10, 2003432), (16, 1252145), (20, 1001716), (40, 500858), (80, 250429), (223, 89840), (446, 44920), (892, 22460), (1115, 17968), (1123, 17840), (1784, 11230), (2230, 8984), (2246, 8920), (3568, 5615), (4460, 4492)]