90667780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{647627}}^1$

素因数の和:647643

約数の個数: 24

約数和(自身を含む): 217603008

約数和(自身を除く): 126935228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 647627, 1295254, 2590508, 3238135, 4533389, 6476270, 9066778, 12952540, 18133556, 22666945, 45333890, 90667780]

約数ペア:

[(1, 90667780), (2, 45333890), (4, 22666945), (5, 18133556), (7, 12952540), (10, 9066778), (14, 6476270), (20, 4533389), (28, 3238135), (35, 2590508), (70, 1295254), (140, 647627)]