315248840

素因数分解:

$2^3\times 5^1\times {\mathrm{7881221}}^1$

素因数の和:7881232

約数の個数: 16

約数和(自身を含む): 709309980

約数和(自身を除く): 394061140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7881221, 15762442, 31524884, 39406105, 63049768, 78812210, 157624420, 315248840]

約数ペア:

[(1, 315248840), (2, 157624420), (4, 78812210), (5, 63049768), (8, 39406105), (10, 31524884), (20, 15762442), (40, 7881221)]