20154200210

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3144181}}^1$

素因数の和:3144829

約数の個数: 16

約数和(自身を含む): 36334167192

約数和(自身を除く): 16179966982

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6410, 3144181, 6288362, 15720905, 31441810, 2015420021, 4030840042, 10077100105, 20154200210]

約数ペア:

[(1, 20154200210), (2, 10077100105), (5, 4030840042), (10, 2015420021), (641, 31441810), (1282, 15720905), (3205, 6288362), (6410, 3144181)]