220172020

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{60821}}^1$

素因数の和:61011

約数の個数: 24

約数和(自身を含む): 464923368

約数和(自身を除く): 244751348

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 60821, 121642, 243284, 304105, 608210, 1216420, 11008601, 22017202, 44034404, 55043005, 110086010, 220172020]

約数ペア:

[(1, 220172020), (2, 110086010), (4, 55043005), (5, 44034404), (10, 22017202), (20, 11008601), (181, 1216420), (362, 608210), (724, 304105), (905, 243284), (1810, 121642), (3620, 60821)]