2021027780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1423259}}^1$

素因数の和:1423339

約数の個数: 24

約数和(自身を含む): 4303938240

約数和(自身を除く): 2282910460

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1423259, 2846518, 5693036, 7116295, 14232590, 28465180, 101051389, 202102778, 404205556, 505256945, 1010513890, 2021027780]

約数ペア:

[(1, 2021027780), (2, 1010513890), (4, 505256945), (5, 404205556), (10, 202102778), (20, 101051389), (71, 28465180), (142, 14232590), (284, 7116295), (355, 5693036), (710, 2846518), (1420, 1423259)]