4179920

素因数分解:

$2^4\times 5^1\times {\mathrm{52249}}^1$

素因数の和:52262

約数の個数: 20

約数和(自身を含む): 9718500

約数和(自身を除く): 5538580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 52249, 104498, 208996, 261245, 417992, 522490, 835984, 1044980, 2089960, 4179920]

約数ペア:

[(1, 4179920), (2, 2089960), (4, 1044980), (5, 835984), (8, 522490), (10, 417992), (16, 261245), (20, 208996), (40, 104498), (80, 52249)]