16644982180

素因数分解:

$2^2\times 5^1\times {\mathrm{832249109}}^1$

素因数の和:832249118

約数の個数: 12

約数和(自身を含む): 34954462620

約数和(自身を除く): 18309480440

約数列:

[1, 2, 4, 5, 10, 20, 832249109, 1664498218, 3328996436, 4161245545, 8322491090, 16644982180]

約数ペア:

[(1, 16644982180), (2, 8322491090), (4, 4161245545), (5, 3328996436), (10, 1664498218), (20, 832249109)]