40647280

素因数分解:

$2^4\times 5^1\times {\mathrm{508091}}^1$

素因数の和:508104

約数の個数: 20

約数和(自身を含む): 94505112

約数和(自身を除く): 53857832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 508091, 1016182, 2032364, 2540455, 4064728, 5080910, 8129456, 10161820, 20323640, 40647280]

約数ペア:

[(1, 40647280), (2, 20323640), (4, 10161820), (5, 8129456), (8, 5080910), (10, 4064728), (16, 2540455), (20, 2032364), (40, 1016182), (80, 508091)]