20165962640

素因数分解:

$2^4\times 5^1\times {\mathrm{863}}^1\times {\mathrm{292091}}^1$

素因数の和:292967

約数の個数: 40

約数和(自身を含む): 46940352768

約数和(自身を除く): 26774390128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 863, 1726, 3452, 4315, 6904, 8630, 13808, 17260, 34520, 69040, 292091, 584182, 1168364, 1460455, 2336728, 2920910, 4673456, 5841820, 11683640, 23367280, 252074533, 504149066, 1008298132, 1260372665, 2016596264, 2520745330, 4033192528, 5041490660, 10082981320, 20165962640]

約数ペア:

[(1, 20165962640), (2, 10082981320), (4, 5041490660), (5, 4033192528), (8, 2520745330), (10, 2016596264), (16, 1260372665), (20, 1008298132), (40, 504149066), (80, 252074533), (863, 23367280), (1726, 11683640), (3452, 5841820), (4315, 4673456), (6904, 2920910), (8630, 2336728), (13808, 1460455), (17260, 1168364), (34520, 584182), (69040, 292091)]