28534420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10891}}^1$

素因数の和:11031

約数の個数: 24

約数和(自身を含む): 60385248

約数和(自身を除く): 31850828

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 10891, 21782, 43564, 54455, 108910, 217820, 1426721, 2853442, 5706884, 7133605, 14267210, 28534420]

約数ペア:

[(1, 28534420), (2, 14267210), (4, 7133605), (5, 5706884), (10, 2853442), (20, 1426721), (131, 217820), (262, 108910), (524, 54455), (655, 43564), (1310, 21782), (2620, 10891)]