20402710

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12517}}^1$

素因数の和:12687

約数の個数: 16

約数和(自身を含む): 36953136

約数和(自身を除く): 16550426

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 12517, 25034, 62585, 125170, 2040271, 4080542, 10201355, 20402710]

約数ペア:

[(1, 20402710), (2, 10201355), (5, 4080542), (10, 2040271), (163, 125170), (326, 62585), (815, 25034), (1630, 12517)]