85877320

素因数分解:

$2^3\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{1663}}^1$

素因数の和:2965

約数の個数: 32

約数和(自身を含む): 193489920

約数和(自身を除く): 107612600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1291, 1663, 2582, 3326, 5164, 6455, 6652, 8315, 10328, 12910, 13304, 16630, 25820, 33260, 51640, 66520, 2146933, 4293866, 8587732, 10734665, 17175464, 21469330, 42938660, 85877320]

約数ペア:

[(1, 85877320), (2, 42938660), (4, 21469330), (5, 17175464), (8, 10734665), (10, 8587732), (20, 4293866), (40, 2146933), (1291, 66520), (1663, 51640), (2582, 33260), (3326, 25820), (5164, 16630), (6455, 13304), (6652, 12910), (8315, 10328)]