315025520

素因数分解:

$2^4\times 5^1\times {\mathrm{3937819}}^1$

素因数の和:3937832

約数の個数: 20

約数和(自身を含む): 732434520

約数和(自身を除く): 417409000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3937819, 7875638, 15751276, 19689095, 31502552, 39378190, 63005104, 78756380, 157512760, 315025520]

約数ペア:

[(1, 315025520), (2, 157512760), (4, 78756380), (5, 63005104), (8, 39378190), (10, 31502552), (16, 19689095), (20, 15751276), (40, 7875638), (80, 3937819)]