8578420

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1229}}^1$

素因数の和:1587

約数の個数: 24

約数和(自身を含む): 18081000

約数和(自身を除く): 9502580

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1229, 1396, 1745, 2458, 3490, 4916, 6145, 6980, 12290, 24580, 428921, 857842, 1715684, 2144605, 4289210, 8578420]

約数ペア:

[(1, 8578420), (2, 4289210), (4, 2144605), (5, 1715684), (10, 857842), (20, 428921), (349, 24580), (698, 12290), (1229, 6980), (1396, 6145), (1745, 4916), (2458, 3490)]