72905810

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{18181}}^1$

素因数の和:18589

約数の個数: 16

約数和(自身を含む): 131564952

約数和(自身を除く): 58659142

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 18181, 36362, 90905, 181810, 7290581, 14581162, 36452905, 72905810]

約数ペア:

[(1, 72905810), (2, 36452905), (5, 14581162), (10, 7290581), (401, 181810), (802, 90905), (2005, 36362), (4010, 18181)]