20052405

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{241}}^1$

素因数の和:338

約数の個数: 36

約数和(自身を含む): 35732268

約数和(自身を除く): 15679863

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 241, 387, 645, 723, 1205, 1849, 1935, 2169, 3615, 5547, 9245, 10363, 10845, 16641, 27735, 31089, 51815, 83205, 93267, 155445, 445609, 466335, 1336827, 2228045, 4010481, 6684135, 20052405]

約数ペア:

[(1, 20052405), (3, 6684135), (5, 4010481), (9, 2228045), (15, 1336827), (43, 466335), (45, 445609), (129, 155445), (215, 93267), (241, 83205), (387, 51815), (645, 31089), (723, 27735), (1205, 16641), (1849, 10845), (1935, 10363), (2169, 9245), (3615, 5547)]