20875210

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1129}}^1$

素因数の和:1222

約数の個数: 24

約数和(自身を含む): 38503620

約数和(自身を除く): 17628410

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 1129, 1849, 2258, 3698, 5645, 9245, 11290, 18490, 48547, 97094, 242735, 485470, 2087521, 4175042, 10437605, 20875210]

約数ペア:

[(1, 20875210), (2, 10437605), (5, 4175042), (10, 2087521), (43, 485470), (86, 242735), (215, 97094), (430, 48547), (1129, 18490), (1849, 11290), (2258, 9245), (3698, 5645)]