638492715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{119233}}^1$

素因数の和:119268

約数の個数: 48

約数和(自身を含む): 1339236288

約数和(自身を除く): 700743573

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 5355, 119233, 357699, 596165, 834631, 1073097, 1788495, 2026961, 2503893, 4173155, 5365485, 6080883, 7511679, 10134805, 12519465, 14188727, 18242649, 30404415, 37558395, 42566181, 70943635, 91213245, 127698543, 212830905, 638492715]

約数ペア:

[(1, 638492715), (3, 212830905), (5, 127698543), (7, 91213245), (9, 70943635), (15, 42566181), (17, 37558395), (21, 30404415), (35, 18242649), (45, 14188727), (51, 12519465), (63, 10134805), (85, 7511679), (105, 6080883), (119, 5365485), (153, 4173155), (255, 2503893), (315, 2026961), (357, 1788495), (595, 1073097), (765, 834631), (1071, 596165), (1785, 357699), (5355, 119233)]