201818420

素因数分解:

$2^2\times 5^1\times {\mathrm{1979}}^1\times {\mathrm{5099}}^1$

素因数の和:7087

約数の個数: 24

約数和(自身を含む): 424116000

約数和(自身を除く): 222297580

約数列:

[1, 2, 4, 5, 10, 20, 1979, 3958, 5099, 7916, 9895, 10198, 19790, 20396, 25495, 39580, 50990, 101980, 10090921, 20181842, 40363684, 50454605, 100909210, 201818420]

約数ペア:

[(1, 201818420), (2, 100909210), (4, 50454605), (5, 40363684), (10, 20181842), (20, 10090921), (1979, 101980), (3958, 50990), (5099, 39580), (7916, 25495), (9895, 20396), (10198, 19790)]