20123210

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49081}}^1$

素因数の和:49129

約数の個数: 16

約数和(自身を含む): 37105992

約数和(自身を除く): 16982782

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 49081, 98162, 245405, 490810, 2012321, 4024642, 10061605, 20123210]

約数ペア:

[(1, 20123210), (2, 10061605), (5, 4024642), (10, 2012321), (41, 490810), (82, 245405), (205, 98162), (410, 49081)]