990147260

素因数分解:

$2^2\times 5^1\times {\mathrm{49507363}}^1$

素因数の和:49507372

約数の個数: 12

約数和(自身を含む): 2079309288

約数和(自身を除く): 1089162028

約数列:

[1, 2, 4, 5, 10, 20, 49507363, 99014726, 198029452, 247536815, 495073630, 990147260]

約数ペア:

[(1, 990147260), (2, 495073630), (4, 247536815), (5, 198029452), (10, 99014726), (20, 49507363)]