30905260

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11117}}^1$

素因数の和:11265

約数の個数: 24

約数和(自身を含む): 65373840

約数和(自身を除く): 34468580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 11117, 22234, 44468, 55585, 111170, 222340, 1545263, 3090526, 6181052, 7726315, 15452630, 30905260]

約数ペア:

[(1, 30905260), (2, 15452630), (4, 7726315), (5, 6181052), (10, 3090526), (20, 1545263), (139, 222340), (278, 111170), (556, 55585), (695, 44468), (1390, 22234), (2780, 11117)]