20809901245

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3257}}^1\times {\mathrm{7937}}^1$

素因数の和:11229

約数の個数: 32

約数和(自身を含む): 29793028608

約数和(自身を除く): 8983127363

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 3257, 7937, 16285, 22799, 39685, 55559, 74911, 113995, 182551, 277795, 374555, 524377, 912755, 1277857, 2621885, 6389285, 25850809, 129254045, 180955663, 594568607, 904778315, 2972843035, 4161980249, 20809901245]

約数ペア:

[(1, 20809901245), (5, 4161980249), (7, 2972843035), (23, 904778315), (35, 594568607), (115, 180955663), (161, 129254045), (805, 25850809), (3257, 6389285), (7937, 2621885), (16285, 1277857), (22799, 912755), (39685, 524377), (55559, 374555), (74911, 277795), (113995, 182551)]