83940020

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{19891}}^1$

素因数の和:20111

約数の個数: 24

約数和(自身を含む): 177118368

約数和(自身を除く): 93178348

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 19891, 39782, 79564, 99455, 198910, 397820, 4197001, 8394002, 16788004, 20985005, 41970010, 83940020]

約数ペア:

[(1, 83940020), (2, 41970010), (4, 20985005), (5, 16788004), (10, 8394002), (20, 4197001), (211, 397820), (422, 198910), (844, 99455), (1055, 79564), (2110, 39782), (4220, 19891)]