1221228920

素因数分解:

$2^3\times 5^1\times {\mathrm{2087}}^1\times {\mathrm{14629}}^1$

素因数の和:16727

約数の個数: 32

約数和(自身を含む): 2749269600

約数和(自身を除く): 1528040680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2087, 4174, 8348, 10435, 14629, 16696, 20870, 29258, 41740, 58516, 73145, 83480, 117032, 146290, 292580, 585160, 30530723, 61061446, 122122892, 152653615, 244245784, 305307230, 610614460, 1221228920]

約数ペア:

[(1, 1221228920), (2, 610614460), (4, 305307230), (5, 244245784), (8, 152653615), (10, 122122892), (20, 61061446), (40, 30530723), (2087, 585160), (4174, 292580), (8348, 146290), (10435, 117032), (14629, 83480), (16696, 73145), (20870, 58516), (29258, 41740)]