28580900

素因数分解:

$2^2\times 5^2\times {\mathrm{311}}^1\times {\mathrm{919}}^1$

素因数の和:1244

約数の個数: 36

約数和(自身を含む): 62287680

約数和(自身を除く): 33706780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 311, 622, 919, 1244, 1555, 1838, 3110, 3676, 4595, 6220, 7775, 9190, 15550, 18380, 22975, 31100, 45950, 91900, 285809, 571618, 1143236, 1429045, 2858090, 5716180, 7145225, 14290450, 28580900]

約数ペア:

[(1, 28580900), (2, 14290450), (4, 7145225), (5, 5716180), (10, 2858090), (20, 1429045), (25, 1143236), (50, 571618), (100, 285809), (311, 91900), (622, 45950), (919, 31100), (1244, 22975), (1555, 18380), (1838, 15550), (3110, 9190), (3676, 7775), (4595, 6220)]