85689680

素因数分解:

$2^4\times 5^1\times {\mathrm{1071121}}^1$

素因数の和:1071134

約数の個数: 20

約数和(自身を含む): 199228692

約数和(自身を除く): 113539012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1071121, 2142242, 4284484, 5355605, 8568968, 10711210, 17137936, 21422420, 42844840, 85689680]

約数ペア:

[(1, 85689680), (2, 42844840), (4, 21422420), (5, 17137936), (8, 10711210), (10, 8568968), (16, 5355605), (20, 4284484), (40, 2142242), (80, 1071121)]