261876240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:756

約数の個数: 240

約数和(自身を含む): 961396800

約数和(自身を除く): 699520560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 243, 270, 285, 304, 324, 342, 360, 380, 405, 432, 456, 486, 513, 540, 570, 648, 684, 709, 720, 760, 810, 855, 912, 972, 1026, 1080, 1140, 1215, 1296, 1368, 1418, 1520, 1539, 1620, 1710, 1944, 2052, 2127, 2160, 2280, 2430, 2565, 2736, 2836, 3078, 3240, 3420, 3545, 3888, 4104, 4254, 4560, 4617, 4860, 5130, 5672, 6156, 6381, 6480, 6840, 7090, 7695, 8208, 8508, 9234, 9720, 10260, 10635, 11344, 12312, 12762, 13471, 13680, 14180, 15390, 17016, 18468, 19143, 19440, 20520, 21270, 23085, 24624, 25524, 26942, 28360, 30780, 31905, 34032, 36936, 38286, 40413, 41040, 42540, 46170, 51048, 53884, 56720, 57429, 61560, 63810, 67355, 73872, 76572, 80826, 85080, 92340, 95715, 102096, 107768, 114858, 121239, 123120, 127620, 134710, 153144, 161652, 170160, 172287, 184680, 191430, 202065, 215536, 229716, 242478, 255240, 269420, 287145, 306288, 323304, 344574, 363717, 369360, 382860, 404130, 459432, 484956, 510480, 538840, 574290, 606195, 646608, 689148, 727434, 765720, 808260, 861435, 918864, 969912, 1077680, 1091151, 1148580, 1212390, 1378296, 1454868, 1531440, 1616520, 1722870, 1818585, 1939824, 2182302, 2297160, 2424780, 2756592, 2909736, 3233040, 3273453, 3445740, 3637170, 4364604, 4594320, 4849560, 5455755, 5819472, 6546906, 6891480, 7274340, 8729208, 9699120, 10911510, 13093812, 13782960, 14548680, 16367265, 17458416, 21823020, 26187624, 29097360, 32734530, 43646040, 52375248, 65469060, 87292080, 130938120, 261876240]

約数ペア:

[(1, 261876240), (2, 130938120), (3, 87292080), (4, 65469060), (5, 52375248), (6, 43646040), (8, 32734530), (9, 29097360), (10, 26187624), (12, 21823020), (15, 17458416), (16, 16367265), (18, 14548680), (19, 13782960), (20, 13093812), (24, 10911510), (27, 9699120), (30, 8729208), (36, 7274340), (38, 6891480), (40, 6546906), (45, 5819472), (48, 5455755), (54, 4849560), (57, 4594320), (60, 4364604), (72, 3637170), (76, 3445740), (80, 3273453), (81, 3233040), (90, 2909736), (95, 2756592), (108, 2424780), (114, 2297160), (120, 2182302), (135, 1939824), (144, 1818585), (152, 1722870), (162, 1616520), (171, 1531440), (180, 1454868), (190, 1378296), (216, 1212390), (228, 1148580), (240, 1091151), (243, 1077680), (270, 969912), (285, 918864), (304, 861435), (324, 808260), (342, 765720), (360, 727434), (380, 689148), (405, 646608), (432, 606195), (456, 574290), (486, 538840), (513, 510480), (540, 484956), (570, 459432), (648, 404130), (684, 382860), (709, 369360), (720, 363717), (760, 344574), (810, 323304), (855, 306288), (912, 287145), (972, 269420), (1026, 255240), (1080, 242478), (1140, 229716), (1215, 215536), (1296, 202065), (1368, 191430), (1418, 184680), (1520, 172287), (1539, 170160), (1620, 161652), (1710, 153144), (1944, 134710), (2052, 127620), (2127, 123120), (2160, 121239), (2280, 114858), (2430, 107768), (2565, 102096), (2736, 95715), (2836, 92340), (3078, 85080), (3240, 80826), (3420, 76572), (3545, 73872), (3888, 67355), (4104, 63810), (4254, 61560), (4560, 57429), (4617, 56720), (4860, 53884), (5130, 51048), (5672, 46170), (6156, 42540), (6381, 41040), (6480, 40413), (6840, 38286), (7090, 36936), (7695, 34032), (8208, 31905), (8508, 30780), (9234, 28360), (9720, 26942), (10260, 25524), (10635, 24624), (11344, 23085), (12312, 21270), (12762, 20520), (13471, 19440), (13680, 19143), (14180, 18468), (15390, 17016)]