78791140

素因数分解:

$2^2\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{3889}}^1$

素因数の和:4911

約数の個数: 24

約数和(自身を含む): 165667320

約数和(自身を除く): 86876180

約数列:

[1, 2, 4, 5, 10, 20, 1013, 2026, 3889, 4052, 5065, 7778, 10130, 15556, 19445, 20260, 38890, 77780, 3939557, 7879114, 15758228, 19697785, 39395570, 78791140]

約数ペア:

[(1, 78791140), (2, 39395570), (4, 19697785), (5, 15758228), (10, 7879114), (20, 3939557), (1013, 77780), (2026, 38890), (3889, 20260), (4052, 19445), (5065, 15556), (7778, 10130)]