40449020

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{1531}}^1$

素因数の和:2861

約数の個数: 24

約数和(自身を含む): 85062768

約数和(自身を除く): 44613748

約数列:

[1, 2, 4, 5, 10, 20, 1321, 1531, 2642, 3062, 5284, 6124, 6605, 7655, 13210, 15310, 26420, 30620, 2022451, 4044902, 8089804, 10112255, 20224510, 40449020]

約数ペア:

[(1, 40449020), (2, 20224510), (4, 10112255), (5, 8089804), (10, 4044902), (20, 2022451), (1321, 30620), (1531, 26420), (2642, 15310), (3062, 13210), (5284, 7655), (6124, 6605)]