20690030

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 38577600

約数和(自身を除く): 17887570

約数列:

[1, 2, 5, 10, 37, 74, 185, 199, 281, 370, 398, 562, 995, 1405, 1990, 2810, 7363, 10397, 14726, 20794, 36815, 51985, 55919, 73630, 103970, 111838, 279595, 559190, 2069003, 4138006, 10345015, 20690030]

約数ペア:

[(1, 20690030), (2, 10345015), (5, 4138006), (10, 2069003), (37, 559190), (74, 279595), (185, 111838), (199, 103970), (281, 73630), (370, 55919), (398, 51985), (562, 36815), (995, 20794), (1405, 14726), (1990, 10397), (2810, 7363)]