31316080

素因数分解:

$2^4\times 5^1\times {\mathrm{391451}}^1$

素因数の和:391464

約数の個数: 20

約数和(自身を含む): 72810072

約数和(自身を除く): 41493992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 391451, 782902, 1565804, 1957255, 3131608, 3914510, 6263216, 7829020, 15658040, 31316080]

約数ペア:

[(1, 31316080), (2, 15658040), (4, 7829020), (5, 6263216), (8, 3914510), (10, 3131608), (16, 1957255), (20, 1565804), (40, 782902), (80, 391451)]