28508723720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10038283}}^1$

素因数の和:10038365

約数の個数: 32

約数和(自身を含む): 65048080320

約数和(自身を除く): 36539356600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10038283, 20076566, 40153132, 50191415, 80306264, 100382830, 200765660, 401531320, 712718093, 1425436186, 2850872372, 3563590465, 5701744744, 7127180930, 14254361860, 28508723720]

約数ペア:

[(1, 28508723720), (2, 14254361860), (4, 7127180930), (5, 5701744744), (8, 3563590465), (10, 2850872372), (20, 1425436186), (40, 712718093), (71, 401531320), (142, 200765660), (284, 100382830), (355, 80306264), (568, 50191415), (710, 40153132), (1420, 20076566), (2840, 10038283)]