30621520

素因数分解:

$2^4\times 5^1\times {\mathrm{382769}}^1$

素因数の和:382782

約数の個数: 20

約数和(自身を含む): 71195220

約数和(自身を除く): 40573700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 382769, 765538, 1531076, 1913845, 3062152, 3827690, 6124304, 7655380, 15310760, 30621520]

約数ペア:

[(1, 30621520), (2, 15310760), (4, 7655380), (5, 6124304), (8, 3827690), (10, 3062152), (16, 1913845), (20, 1531076), (40, 765538), (80, 382769)]