243782020

素因数分解:

$2^2\times 5^1\times {\mathrm{1181}}^1\times {\mathrm{10321}}^1$

素因数の和:11511

約数の個数: 24

約数和(自身を含む): 512425368

約数和(自身を除く): 268643348

約数列:

[1, 2, 4, 5, 10, 20, 1181, 2362, 4724, 5905, 10321, 11810, 20642, 23620, 41284, 51605, 103210, 206420, 12189101, 24378202, 48756404, 60945505, 121891010, 243782020]

約数ペア:

[(1, 243782020), (2, 121891010), (4, 60945505), (5, 48756404), (10, 24378202), (20, 12189101), (1181, 206420), (2362, 103210), (4724, 51605), (5905, 41284), (10321, 23620), (11810, 20642)]