261447720660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{212383}}^1$

素因数の和:213382

約数の個数: 144

約数和(自身を含む): 907284059136

約数和(自身を除く): 645836338476

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 977, 1260, 1954, 2931, 3908, 4885, 5862, 6839, 8793, 9770, 11724, 13678, 14655, 17586, 19540, 20517, 27356, 29310, 34195, 35172, 41034, 43965, 58620, 61551, 68390, 82068, 87930, 102585, 123102, 136780, 175860, 205170, 212383, 246204, 307755, 410340, 424766, 615510, 637149, 849532, 1061915, 1231020, 1274298, 1486681, 1911447, 2123830, 2548596, 2973362, 3185745, 3822894, 4247660, 4460043, 5946724, 6371490, 7433405, 7645788, 8920086, 9557235, 12742980, 13380129, 14866810, 17840172, 19114470, 22300215, 26760258, 29733620, 38228940, 44600430, 53520516, 66900645, 89200860, 133801290, 207498191, 267602580, 414996382, 622494573, 829992764, 1037490955, 1244989146, 1452487337, 1867483719, 2074981910, 2489978292, 2904974674, 3112472865, 3734967438, 4149963820, 4357462011, 5809949348, 6224945730, 7262436685, 7469934876, 8714924022, 9337418595, 12449891460, 13072386033, 14524873370, 17429848044, 18674837190, 21787310055, 26144772066, 29049746740, 37349674380, 43574620110, 52289544132, 65361930165, 87149240220, 130723860330, 261447720660]

約数ペア:

[(1, 261447720660), (2, 130723860330), (3, 87149240220), (4, 65361930165), (5, 52289544132), (6, 43574620110), (7, 37349674380), (9, 29049746740), (10, 26144772066), (12, 21787310055), (14, 18674837190), (15, 17429848044), (18, 14524873370), (20, 13072386033), (21, 12449891460), (28, 9337418595), (30, 8714924022), (35, 7469934876), (36, 7262436685), (42, 6224945730), (45, 5809949348), (60, 4357462011), (63, 4149963820), (70, 3734967438), (84, 3112472865), (90, 2904974674), (105, 2489978292), (126, 2074981910), (140, 1867483719), (180, 1452487337), (210, 1244989146), (252, 1037490955), (315, 829992764), (420, 622494573), (630, 414996382), (977, 267602580), (1260, 207498191), (1954, 133801290), (2931, 89200860), (3908, 66900645), (4885, 53520516), (5862, 44600430), (6839, 38228940), (8793, 29733620), (9770, 26760258), (11724, 22300215), (13678, 19114470), (14655, 17840172), (17586, 14866810), (19540, 13380129), (20517, 12742980), (27356, 9557235), (29310, 8920086), (34195, 7645788), (35172, 7433405), (41034, 6371490), (43965, 5946724), (58620, 4460043), (61551, 4247660), (68390, 3822894), (82068, 3185745), (87930, 2973362), (102585, 2548596), (123102, 2123830), (136780, 1911447), (175860, 1486681), (205170, 1274298), (212383, 1231020), (246204, 1061915), (307755, 849532), (410340, 637149), (424766, 615510)]