20690080

素因数分解:

$2^5\times 5^1\times {\mathrm{129313}}^1$

素因数の和:129328

約数の個数: 24

約数和(自身を含む): 48880692

約数和(自身を除く): 28190612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 129313, 258626, 517252, 646565, 1034504, 1293130, 2069008, 2586260, 4138016, 5172520, 10345040, 20690080]

約数ペア:

[(1, 20690080), (2, 10345040), (4, 5172520), (5, 4138016), (8, 2586260), (10, 2069008), (16, 1293130), (20, 1034504), (32, 646565), (40, 517252), (80, 258626), (160, 129313)]