85381580

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{4231}}^1$

素因数の和:5249

約数の個数: 24

約数和(自身を含む): 179521440

約数和(自身を除く): 94139860

約数列:

[1, 2, 4, 5, 10, 20, 1009, 2018, 4036, 4231, 5045, 8462, 10090, 16924, 20180, 21155, 42310, 84620, 4269079, 8538158, 17076316, 21345395, 42690790, 85381580]

約数ペア:

[(1, 85381580), (2, 42690790), (4, 21345395), (5, 17076316), (10, 8538158), (20, 4269079), (1009, 84620), (2018, 42310), (4036, 21155), (4231, 20180), (5045, 16924), (8462, 10090)]