727644020

素因数分解:

$2^2\times 5^1\times {\mathrm{2221}}^1\times {\mathrm{16381}}^1$

素因数の和:18611

約数の個数: 24

約数和(自身を含む): 1528833768

約数和(自身を除く): 801189748

約数列:

[1, 2, 4, 5, 10, 20, 2221, 4442, 8884, 11105, 16381, 22210, 32762, 44420, 65524, 81905, 163810, 327620, 36382201, 72764402, 145528804, 181911005, 363822010, 727644020]

約数ペア:

[(1, 727644020), (2, 363822010), (4, 181911005), (5, 145528804), (10, 72764402), (20, 36382201), (2221, 327620), (4442, 163810), (8884, 81905), (11105, 65524), (16381, 44420), (22210, 32762)]