20100123640

素因数分解:

$2^3\times 5^1\times {\mathrm{502503091}}^1$

素因数の和:502503102

約数の個数: 16

約数和(自身を含む): 45225278280

約数和(自身を除く): 25125154640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502503091, 1005006182, 2010012364, 2512515455, 4020024728, 5025030910, 10050061820, 20100123640]

約数ペア:

[(1, 20100123640), (2, 10050061820), (4, 5025030910), (5, 4020024728), (8, 2512515455), (10, 2010012364), (20, 1005006182), (40, 502503091)]