394896080

素因数分解:

$2^4\times 5^1\times {\mathrm{4936201}}^1$

素因数の和:4936214

約数の個数: 20

約数和(自身を含む): 918133572

約数和(自身を除く): 523237492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4936201, 9872402, 19744804, 24681005, 39489608, 49362010, 78979216, 98724020, 197448040, 394896080]

約数ペア:

[(1, 394896080), (2, 197448040), (4, 98724020), (5, 78979216), (8, 49362010), (10, 39489608), (16, 24681005), (20, 19744804), (40, 9872402), (80, 4936201)]