40138040

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3571}}^1$

素因数の和:3863

約数の個数: 32

約数和(自身を含む): 90657360

約数和(自身を除く): 50519320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 3571, 5620, 7142, 11240, 14284, 17855, 28568, 35710, 71420, 142840, 1003451, 2006902, 4013804, 5017255, 8027608, 10034510, 20069020, 40138040]

約数ペア:

[(1, 40138040), (2, 20069020), (4, 10034510), (5, 8027608), (8, 5017255), (10, 4013804), (20, 2006902), (40, 1003451), (281, 142840), (562, 71420), (1124, 35710), (1405, 28568), (2248, 17855), (2810, 14284), (3571, 11240), (5620, 7142)]