279987484

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{1129}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 594578880

約数和(自身を除く): 314591396

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 521, 1042, 1129, 2084, 2258, 3647, 4516, 7294, 7903, 8857, 14588, 15806, 17714, 19193, 31612, 35428, 38386, 61999, 76772, 123998, 134351, 247996, 268702, 537404, 588209, 1176418, 2352836, 4117463, 8234926, 9999553, 16469852, 19999106, 39998212, 69996871, 139993742, 279987484]

約数ペア:

[(1, 279987484), (2, 139993742), (4, 69996871), (7, 39998212), (14, 19999106), (17, 16469852), (28, 9999553), (34, 8234926), (68, 4117463), (119, 2352836), (238, 1176418), (476, 588209), (521, 537404), (1042, 268702), (1129, 247996), (2084, 134351), (2258, 123998), (3647, 76772), (4516, 61999), (7294, 38386), (7903, 35428), (8857, 31612), (14588, 19193), (15806, 17714)]