20920820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9257}}^1$

素因数の和:9379

約数の個数: 24

約数和(自身を含む): 44327304

約数和(自身を除く): 23406484

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9257, 18514, 37028, 46285, 92570, 185140, 1046041, 2092082, 4184164, 5230205, 10460410, 20920820]

約数ペア:

[(1, 20920820), (2, 10460410), (4, 5230205), (5, 4184164), (10, 2092082), (20, 1046041), (113, 185140), (226, 92570), (452, 46285), (565, 37028), (1130, 18514), (2260, 9257)]