1906389620

素因数分解:

$2^2\times 5^1\times {\mathrm{5431}}^1\times {\mathrm{17551}}^1$

素因数の和:22991

約数の個数: 24

約数和(自身を含む): 4004383488

約数和(自身を除く): 2097993868

約数列:

[1, 2, 4, 5, 10, 20, 5431, 10862, 17551, 21724, 27155, 35102, 54310, 70204, 87755, 108620, 175510, 351020, 95319481, 190638962, 381277924, 476597405, 953194810, 1906389620]

約数ペア:

[(1, 1906389620), (2, 953194810), (4, 476597405), (5, 381277924), (10, 190638962), (20, 95319481), (5431, 351020), (10862, 175510), (17551, 108620), (21724, 87755), (27155, 70204), (35102, 54310)]