20508850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9539}}^1$

素因数の和:9594

約数の個数: 24

約数和(自身を含む): 39037680

約数和(自身を除く): 18528830

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9539, 19078, 47695, 95390, 238475, 410177, 476950, 820354, 2050885, 4101770, 10254425, 20508850]

約数ペア:

[(1, 20508850), (2, 10254425), (5, 4101770), (10, 2050885), (25, 820354), (43, 476950), (50, 410177), (86, 238475), (215, 95390), (430, 47695), (1075, 19078), (2150, 9539)]