217439630

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{306253}}^1$

素因数の和:306331

約数の個数: 16

約数和(自身を含む): 396905184

約数和(自身を除く): 179465554

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 306253, 612506, 1531265, 3062530, 21743963, 43487926, 108719815, 217439630]

約数ペア:

[(1, 217439630), (2, 108719815), (5, 43487926), (10, 21743963), (71, 3062530), (142, 1531265), (355, 612506), (710, 306253)]