208752005

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2671}}^1$

素因数の和:2730

約数の個数: 48

約数和(自身を含む): 328976640

約数和(自身を除く): 120224635

約数列:

[1, 5, 7, 11, 29, 35, 49, 55, 77, 145, 203, 245, 319, 385, 539, 1015, 1421, 1595, 2233, 2671, 2695, 7105, 11165, 13355, 15631, 18697, 29381, 77459, 78155, 93485, 130879, 146905, 205667, 387295, 542213, 654395, 852049, 1028335, 1439669, 2711065, 3795491, 4260245, 5964343, 7198345, 18977455, 29821715, 41750401, 208752005]

約数ペア:

[(1, 208752005), (5, 41750401), (7, 29821715), (11, 18977455), (29, 7198345), (35, 5964343), (49, 4260245), (55, 3795491), (77, 2711065), (145, 1439669), (203, 1028335), (245, 852049), (319, 654395), (385, 542213), (539, 387295), (1015, 205667), (1421, 146905), (1595, 130879), (2233, 93485), (2671, 78155), (2695, 77459), (7105, 29381), (11165, 18697), (13355, 15631)]