20020885

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{3491}}^1$

素因数の和:3564

約数の個数: 16

約数和(自身を含む): 25477632

約数和(自身を除く): 5456747

約数列:

[1, 5, 31, 37, 155, 185, 1147, 3491, 5735, 17455, 108221, 129167, 541105, 645835, 4004177, 20020885]

約数ペア:

[(1, 20020885), (5, 4004177), (31, 645835), (37, 541105), (155, 129167), (185, 108221), (1147, 17455), (3491, 5735)]