20161136080

素因数分解:

$2^4\times 5^1\times {\mathrm{2531}}^1\times {\mathrm{99571}}^1$

素因数の和:102115

約数の個数: 40

約数和(自身を含む): 46893632544

約数和(自身を除く): 26732496464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2531, 5062, 10124, 12655, 20248, 25310, 40496, 50620, 99571, 101240, 199142, 202480, 398284, 497855, 796568, 995710, 1593136, 1991420, 3982840, 7965680, 252014201, 504028402, 1008056804, 1260071005, 2016113608, 2520142010, 4032227216, 5040284020, 10080568040, 20161136080]

約数ペア:

[(1, 20161136080), (2, 10080568040), (4, 5040284020), (5, 4032227216), (8, 2520142010), (10, 2016113608), (16, 1260071005), (20, 1008056804), (40, 504028402), (80, 252014201), (2531, 7965680), (5062, 3982840), (10124, 1991420), (12655, 1593136), (20248, 995710), (25310, 796568), (40496, 497855), (50620, 398284), (99571, 202480), (101240, 199142)]