309061520

素因数分解:

$2^4\times 5^1\times {\mathrm{3863269}}^1$

素因数の和:3863282

約数の個数: 20

約数和(自身を含む): 718568220

約数和(自身を除く): 409506700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3863269, 7726538, 15453076, 19316345, 30906152, 38632690, 61812304, 77265380, 154530760, 309061520]

約数ペア:

[(1, 309061520), (2, 154530760), (4, 77265380), (5, 61812304), (8, 38632690), (10, 30906152), (16, 19316345), (20, 15453076), (40, 7726538), (80, 3863269)]