7216390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1999}}^1$

素因数の和:2044

約数の個数: 24

約数和(自身を含む): 13716000

約数和(自身を除く): 6499610

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 1999, 3610, 3998, 9995, 19990, 37981, 75962, 189905, 379810, 721639, 1443278, 3608195, 7216390]

約数ペア:

[(1, 7216390), (2, 3608195), (5, 1443278), (10, 721639), (19, 379810), (38, 189905), (95, 75962), (190, 37981), (361, 19990), (722, 9995), (1805, 3998), (1999, 3610)]