391376080

素因数分解:

$2^4\times 5^1\times {\mathrm{4892201}}^1$

素因数の和:4892214

約数の個数: 20

約数和(自身を含む): 909949572

約数和(自身を除く): 518573492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4892201, 9784402, 19568804, 24461005, 39137608, 48922010, 78275216, 97844020, 195688040, 391376080]

約数ペア:

[(1, 391376080), (2, 195688040), (4, 97844020), (5, 78275216), (8, 48922010), (10, 39137608), (16, 24461005), (20, 19568804), (40, 9784402), (80, 4892201)]