25480660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16127}}^1$

素因数の和:16215

約数の個数: 24

約数和(自身を含む): 54190080

約数和(自身を除く): 28709420

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 16127, 32254, 64508, 80635, 161270, 322540, 1274033, 2548066, 5096132, 6370165, 12740330, 25480660]

約数ペア:

[(1, 25480660), (2, 12740330), (4, 6370165), (5, 5096132), (10, 2548066), (20, 1274033), (79, 322540), (158, 161270), (316, 80635), (395, 64508), (790, 32254), (1580, 16127)]