81127220

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{35897}}^1$

素因数の和:36019

約数の個数: 24

約数和(自身を含む): 171879624

約数和(自身を除く): 90752404

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 35897, 71794, 143588, 179485, 358970, 717940, 4056361, 8112722, 16225444, 20281805, 40563610, 81127220]

約数ペア:

[(1, 81127220), (2, 40563610), (4, 20281805), (5, 16225444), (10, 8112722), (20, 4056361), (113, 717940), (226, 358970), (452, 179485), (565, 143588), (1130, 71794), (2260, 35897)]