2810180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2059

約数の個数: 24

約数和(自身を含む): 5987520

約数和(自身を除く): 3177340

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1979, 3958, 7916, 9895, 19790, 39580, 140509, 281018, 562036, 702545, 1405090, 2810180]

約数ペア:

[(1, 2810180), (2, 1405090), (4, 702545), (5, 562036), (10, 281018), (20, 140509), (71, 39580), (142, 19790), (284, 9895), (355, 7916), (710, 3958), (1420, 1979)]