81325740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1355429}}^1$

素因数の和:1355441

約数の個数: 24

約数和(自身を含む): 227712240

約数和(自身を除く): 146386500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1355429, 2710858, 4066287, 5421716, 6777145, 8132574, 13554290, 16265148, 20331435, 27108580, 40662870, 81325740]

約数ペア:

[(1, 81325740), (2, 40662870), (3, 27108580), (4, 20331435), (5, 16265148), (6, 13554290), (10, 8132574), (12, 6777145), (15, 5421716), (20, 4066287), (30, 2710858), (60, 1355429)]