12784820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{5657}}^1$

素因数の和:5779

約数の個数: 24

約数和(自身を含む): 27090504

約数和(自身を除く): 14305684

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 5657, 11314, 22628, 28285, 56570, 113140, 639241, 1278482, 2556964, 3196205, 6392410, 12784820]

約数ペア:

[(1, 12784820), (2, 6392410), (4, 3196205), (5, 2556964), (10, 1278482), (20, 639241), (113, 113140), (226, 56570), (452, 28285), (565, 22628), (1130, 11314), (2260, 5657)]