78636980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{135581}}^1$

素因数の和:135619

約数の個数: 24

約数和(自身を含む): 170833320

約数和(自身を除く): 92196340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 135581, 271162, 542324, 677905, 1355810, 2711620, 3931849, 7863698, 15727396, 19659245, 39318490, 78636980]

約数ペア:

[(1, 78636980), (2, 39318490), (4, 19659245), (5, 15727396), (10, 7863698), (20, 3931849), (29, 2711620), (58, 1355810), (116, 677905), (145, 542324), (290, 271162), (580, 135581)]