1999403990

素因数分解:

$2^1\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{96079}}^1$

素因数の和:98167

約数の個数: 16

約数和(自身を含む): 3600694080

約数和(自身を除く): 1601290090

約数列:

[1, 2, 5, 10, 2081, 4162, 10405, 20810, 96079, 192158, 480395, 960790, 199940399, 399880798, 999701995, 1999403990]

約数ペア:

[(1, 1999403990), (2, 999701995), (5, 399880798), (10, 199940399), (2081, 960790), (4162, 480395), (10405, 192158), (20810, 96079)]