80113840

素因数分解:

$2^4\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1129}}^1$

素因数の和:2029

約数の個数: 40

約数和(自身を含む): 186639840

約数和(自身を除く): 106526000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 887, 1129, 1774, 2258, 3548, 4435, 4516, 5645, 7096, 8870, 9032, 11290, 14192, 17740, 18064, 22580, 35480, 45160, 70960, 90320, 1001423, 2002846, 4005692, 5007115, 8011384, 10014230, 16022768, 20028460, 40056920, 80113840]

約数ペア:

[(1, 80113840), (2, 40056920), (4, 20028460), (5, 16022768), (8, 10014230), (10, 8011384), (16, 5007115), (20, 4005692), (40, 2002846), (80, 1001423), (887, 90320), (1129, 70960), (1774, 45160), (2258, 35480), (3548, 22580), (4435, 18064), (4516, 17740), (5645, 14192), (7096, 11290), (8870, 9032)]