81050220

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:156

約数の個数: 192

約数和(自身を含む): 272764800

約数和(自身を除く): 191714580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 109, 135, 153, 162, 170, 180, 204, 218, 243, 255, 270, 306, 324, 327, 340, 405, 436, 459, 486, 510, 540, 545, 612, 654, 729, 765, 810, 918, 972, 981, 1020, 1090, 1215, 1308, 1377, 1458, 1530, 1620, 1635, 1836, 1853, 1962, 2180, 2187, 2295, 2430, 2754, 2916, 2943, 3060, 3270, 3645, 3706, 3924, 4131, 4374, 4590, 4860, 4905, 5508, 5559, 5886, 6540, 6885, 7290, 7412, 8262, 8748, 8829, 9180, 9265, 9810, 10935, 11118, 11772, 12393, 13770, 14580, 14715, 16524, 16677, 17658, 18530, 19620, 20655, 21870, 22236, 24786, 26487, 27540, 27795, 29430, 33354, 35316, 37060, 37179, 41310, 43740, 44145, 49572, 50031, 52974, 55590, 58860, 61965, 66708, 74358, 79461, 82620, 83385, 88290, 100062, 105948, 111180, 123930, 132435, 148716, 150093, 158922, 166770, 176580, 185895, 200124, 238383, 247860, 250155, 264870, 300186, 317844, 333540, 371790, 397305, 450279, 476766, 500310, 529740, 600372, 743580, 750465, 794610, 900558, 953532, 1000620, 1191915, 1350837, 1500930, 1589220, 1801116, 2251395, 2383830, 2701674, 3001860, 4052511, 4502790, 4767660, 5403348, 6754185, 8105022, 9005580, 13508370, 16210044, 20262555, 27016740, 40525110, 81050220]

約数ペア:

[(1, 81050220), (2, 40525110), (3, 27016740), (4, 20262555), (5, 16210044), (6, 13508370), (9, 9005580), (10, 8105022), (12, 6754185), (15, 5403348), (17, 4767660), (18, 4502790), (20, 4052511), (27, 3001860), (30, 2701674), (34, 2383830), (36, 2251395), (45, 1801116), (51, 1589220), (54, 1500930), (60, 1350837), (68, 1191915), (81, 1000620), (85, 953532), (90, 900558), (102, 794610), (108, 750465), (109, 743580), (135, 600372), (153, 529740), (162, 500310), (170, 476766), (180, 450279), (204, 397305), (218, 371790), (243, 333540), (255, 317844), (270, 300186), (306, 264870), (324, 250155), (327, 247860), (340, 238383), (405, 200124), (436, 185895), (459, 176580), (486, 166770), (510, 158922), (540, 150093), (545, 148716), (612, 132435), (654, 123930), (729, 111180), (765, 105948), (810, 100062), (918, 88290), (972, 83385), (981, 82620), (1020, 79461), (1090, 74358), (1215, 66708), (1308, 61965), (1377, 58860), (1458, 55590), (1530, 52974), (1620, 50031), (1635, 49572), (1836, 44145), (1853, 43740), (1962, 41310), (2180, 37179), (2187, 37060), (2295, 35316), (2430, 33354), (2754, 29430), (2916, 27795), (2943, 27540), (3060, 26487), (3270, 24786), (3645, 22236), (3706, 21870), (3924, 20655), (4131, 19620), (4374, 18530), (4590, 17658), (4860, 16677), (4905, 16524), (5508, 14715), (5559, 14580), (5886, 13770), (6540, 12393), (6885, 11772), (7290, 11118), (7412, 10935), (8262, 9810), (8748, 9265), (8829, 9180)]