2165715

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 4212000

約数和(自身を除く): 2046285

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 149, 153, 171, 255, 285, 323, 447, 745, 765, 855, 969, 1341, 1615, 2235, 2533, 2831, 2907, 4845, 6705, 7599, 8493, 12665, 14155, 14535, 22797, 25479, 37995, 42465, 48127, 113985, 127395, 144381, 240635, 433143, 721905, 2165715]

約数ペア:

[(1, 2165715), (3, 721905), (5, 433143), (9, 240635), (15, 144381), (17, 127395), (19, 113985), (45, 48127), (51, 42465), (57, 37995), (85, 25479), (95, 22797), (149, 14535), (153, 14155), (171, 12665), (255, 8493), (285, 7599), (323, 6705), (447, 4845), (745, 2907), (765, 2831), (855, 2533), (969, 2235), (1341, 1615)]