81285660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1381}}^1$

素因数の和:1508

約数の個数: 96

約数和(自身を含む): 255393600

約数和(自身を除く): 174107940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 109, 135, 180, 218, 270, 327, 436, 540, 545, 654, 981, 1090, 1308, 1381, 1635, 1962, 2180, 2762, 2943, 3270, 3924, 4143, 4905, 5524, 5886, 6540, 6905, 8286, 9810, 11772, 12429, 13810, 14715, 16572, 19620, 20715, 24858, 27620, 29430, 37287, 41430, 49716, 58860, 62145, 74574, 82860, 124290, 149148, 150529, 186435, 248580, 301058, 372870, 451587, 602116, 745740, 752645, 903174, 1354761, 1505290, 1806348, 2257935, 2709522, 3010580, 4064283, 4515870, 5419044, 6773805, 8128566, 9031740, 13547610, 16257132, 20321415, 27095220, 40642830, 81285660]

約数ペア:

[(1, 81285660), (2, 40642830), (3, 27095220), (4, 20321415), (5, 16257132), (6, 13547610), (9, 9031740), (10, 8128566), (12, 6773805), (15, 5419044), (18, 4515870), (20, 4064283), (27, 3010580), (30, 2709522), (36, 2257935), (45, 1806348), (54, 1505290), (60, 1354761), (90, 903174), (108, 752645), (109, 745740), (135, 602116), (180, 451587), (218, 372870), (270, 301058), (327, 248580), (436, 186435), (540, 150529), (545, 149148), (654, 124290), (981, 82860), (1090, 74574), (1308, 62145), (1381, 58860), (1635, 49716), (1962, 41430), (2180, 37287), (2762, 29430), (2943, 27620), (3270, 24858), (3924, 20715), (4143, 19620), (4905, 16572), (5524, 14715), (5886, 13810), (6540, 12429), (6905, 11772), (8286, 9810)]