53145520

素因数分解:

$2^4\times 5^1\times {\mathrm{664319}}^1$

素因数の和:664332

約数の個数: 20

約数和(自身を含む): 123563520

約数和(自身を除く): 70418000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 664319, 1328638, 2657276, 3321595, 5314552, 6643190, 10629104, 13286380, 26572760, 53145520]

約数ペア:

[(1, 53145520), (2, 26572760), (4, 13286380), (5, 10629104), (8, 6643190), (10, 5314552), (16, 3321595), (20, 2657276), (40, 1328638), (80, 664319)]