51576080

素因数分解:

$2^4\times 5^1\times {\mathrm{644701}}^1$

素因数の和:644714

約数の個数: 20

約数和(自身を含む): 119914572

約数和(自身を除く): 68338492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 644701, 1289402, 2578804, 3223505, 5157608, 6447010, 10315216, 12894020, 25788040, 51576080]

約数ペア:

[(1, 51576080), (2, 25788040), (4, 12894020), (5, 10315216), (8, 6447010), (10, 5157608), (16, 3223505), (20, 2578804), (40, 1289402), (80, 644701)]