85150420

素因数分解:

$2^2\times 5^1\times {\mathrm{4257521}}^1$

素因数の和:4257530

約数の個数: 12

約数和(自身を含む): 178815924

約数和(自身を除く): 93665504

約数列:

[1, 2, 4, 5, 10, 20, 4257521, 8515042, 17030084, 21287605, 42575210, 85150420]

約数ペア:

[(1, 85150420), (2, 42575210), (4, 21287605), (5, 17030084), (10, 8515042), (20, 4257521)]