8019867820

素因数分解:

$2^2\times 5^1\times {\mathrm{1931}}^1\times {\mathrm{207661}}^1$

素因数の和:209601

約数の個数: 24

約数和(自身を含む): 16850525328

約数和(自身を除く): 8830657508

約数列:

[1, 2, 4, 5, 10, 20, 1931, 3862, 7724, 9655, 19310, 38620, 207661, 415322, 830644, 1038305, 2076610, 4153220, 400993391, 801986782, 1603973564, 2004966955, 4009933910, 8019867820]

約数ペア:

[(1, 8019867820), (2, 4009933910), (4, 2004966955), (5, 1603973564), (10, 801986782), (20, 400993391), (1931, 4153220), (3862, 2076610), (7724, 1038305), (9655, 830644), (19310, 415322), (38620, 207661)]