20179245880

素因数分解:

$2^3\times 5^1\times {\mathrm{504481147}}^1$

素因数の和:504481158

約数の個数: 16

約数和(自身を含む): 45403303320

約数和(自身を除く): 25224057440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504481147, 1008962294, 2017924588, 2522405735, 4035849176, 5044811470, 10089622940, 20179245880]

約数ペア:

[(1, 20179245880), (2, 10089622940), (4, 5044811470), (5, 4035849176), (8, 2522405735), (10, 2017924588), (20, 1008962294), (40, 504481147)]