89440760

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{4481}}^1$

素因数の和:4991

約数の個数: 32

約数和(自身を含む): 201690000

約数和(自身を除く): 112249240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4481, 4990, 8962, 9980, 17924, 19960, 22405, 35848, 44810, 89620, 179240, 2236019, 4472038, 8944076, 11180095, 17888152, 22360190, 44720380, 89440760]

約数ペア:

[(1, 89440760), (2, 44720380), (4, 22360190), (5, 17888152), (8, 11180095), (10, 8944076), (20, 4472038), (40, 2236019), (499, 179240), (998, 89620), (1996, 44810), (2495, 35848), (3992, 22405), (4481, 19960), (4990, 17924), (8962, 9980)]