64632020

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{10391}}^1$

素因数の和:10711

約数の個数: 24

約数和(自身を含む): 136176768

約数和(自身を除く): 71544748

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 10391, 20782, 41564, 51955, 103910, 207820, 3231601, 6463202, 12926404, 16158005, 32316010, 64632020]

約数ペア:

[(1, 64632020), (2, 32316010), (4, 16158005), (5, 12926404), (10, 6463202), (20, 3231601), (311, 207820), (622, 103910), (1244, 51955), (1555, 41564), (3110, 20782), (6220, 10391)]