31202020

素因数分解:

$2^2\times 5^1\times {\mathrm{1181}}^1\times {\mathrm{1321}}^1$

素因数の和:2511

約数の個数: 24

約数和(自身を含む): 65629368

約数和(自身を除く): 34427348

約数列:

[1, 2, 4, 5, 10, 20, 1181, 1321, 2362, 2642, 4724, 5284, 5905, 6605, 11810, 13210, 23620, 26420, 1560101, 3120202, 6240404, 7800505, 15601010, 31202020]

約数ペア:

[(1, 31202020), (2, 15601010), (4, 7800505), (5, 6240404), (10, 3120202), (20, 1560101), (1181, 26420), (1321, 23620), (2362, 13210), (2642, 11810), (4724, 6605), (5284, 5905)]