80631664

素因数分解:

$2^4\times {\mathrm{1999}}^1\times {\mathrm{2521}}^1$

素因数の和:4528

約数の個数: 20

約数和(自身を含む): 156364000

約数和(自身を除く): 75732336

約数列:

[1, 2, 4, 8, 16, 1999, 2521, 3998, 5042, 7996, 10084, 15992, 20168, 31984, 40336, 5039479, 10078958, 20157916, 40315832, 80631664]

約数ペア:

[(1, 80631664), (2, 40315832), (4, 20157916), (8, 10078958), (16, 5039479), (1999, 40336), (2521, 31984), (3998, 20168), (5042, 15992), (7996, 10084)]