28505080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10037}}^1$

素因数の和:10119

約数の個数: 32

約数和(自身を含む): 65046240

約数和(自身を除く): 36541160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10037, 20074, 40148, 50185, 80296, 100370, 200740, 401480, 712627, 1425254, 2850508, 3563135, 5701016, 7126270, 14252540, 28505080]

約数ペア:

[(1, 28505080), (2, 14252540), (4, 7126270), (5, 5701016), (8, 3563135), (10, 2850508), (20, 1425254), (40, 712627), (71, 401480), (142, 200740), (284, 100370), (355, 80296), (568, 50185), (710, 40148), (1420, 20074), (2840, 10037)]