80358340

素因数分解:

$2^2\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{3943}}^1$

素因数の和:4971

約数の個数: 24

約数和(自身を含む): 168960960

約数和(自身を除く): 88602620

約数列:

[1, 2, 4, 5, 10, 20, 1019, 2038, 3943, 4076, 5095, 7886, 10190, 15772, 19715, 20380, 39430, 78860, 4017917, 8035834, 16071668, 20089585, 40179170, 80358340]

約数ペア:

[(1, 80358340), (2, 40179170), (4, 20089585), (5, 16071668), (10, 8035834), (20, 4017917), (1019, 78860), (2038, 39430), (3943, 20380), (4076, 19715), (5095, 15772), (7886, 10190)]