217422020

素因数分解:

$2^2\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{8513}}^1$

素因数の和:9799

約数の個数: 24

約数和(自身を含む): 456997464

約数和(自身を除く): 239575444

約数列:

[1, 2, 4, 5, 10, 20, 1277, 2554, 5108, 6385, 8513, 12770, 17026, 25540, 34052, 42565, 85130, 170260, 10871101, 21742202, 43484404, 54355505, 108711010, 217422020]

約数ペア:

[(1, 217422020), (2, 108711010), (4, 54355505), (5, 43484404), (10, 21742202), (20, 10871101), (1277, 170260), (2554, 85130), (5108, 42565), (6385, 34052), (8513, 25540), (12770, 17026)]