28681160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10099}}^1$

素因数の和:10181

約数の個数: 32

約数和(自身を含む): 65448000

約数和(自身を除く): 36766840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10099, 20198, 40396, 50495, 80792, 100990, 201980, 403960, 717029, 1434058, 2868116, 3585145, 5736232, 7170290, 14340580, 28681160]

約数ペア:

[(1, 28681160), (2, 14340580), (4, 7170290), (5, 5736232), (8, 3585145), (10, 2868116), (20, 1434058), (40, 717029), (71, 403960), (142, 201980), (284, 100990), (355, 80792), (568, 50495), (710, 40396), (1420, 20198), (2840, 10099)]