9980792020

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{790871}}^1$

素因数の和:791511

約数の個数: 24

約数和(自身を含む): 20992906368

約数和(自身を除く): 11012114348

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 12620, 790871, 1581742, 3163484, 3954355, 7908710, 15817420, 499039601, 998079202, 1996158404, 2495198005, 4990396010, 9980792020]

約数ペア:

[(1, 9980792020), (2, 4990396010), (4, 2495198005), (5, 1996158404), (10, 998079202), (20, 499039601), (631, 15817420), (1262, 7908710), (2524, 3954355), (3155, 3163484), (6310, 1581742), (12620, 790871)]