1280720280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{907}}^1$

素因数の和:1010

約数の個数: 192

約数和(自身を含む): 4505713920

約数和(自身を除く): 3224993640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 82, 84, 105, 120, 123, 140, 164, 168, 205, 210, 246, 280, 287, 328, 410, 420, 492, 574, 615, 820, 840, 861, 907, 984, 1148, 1230, 1435, 1640, 1681, 1722, 1814, 2296, 2460, 2721, 2870, 3362, 3444, 3628, 4305, 4535, 4920, 5043, 5442, 5740, 6349, 6724, 6888, 7256, 8405, 8610, 9070, 10086, 10884, 11480, 11767, 12698, 13448, 13605, 16810, 17220, 18140, 19047, 20172, 21768, 23534, 25215, 25396, 27210, 31745, 33620, 34440, 35301, 36280, 37187, 38094, 40344, 47068, 50430, 50792, 54420, 58835, 63490, 67240, 70602, 74374, 76188, 94136, 95235, 100860, 108840, 111561, 117670, 126980, 141204, 148748, 152376, 176505, 185935, 190470, 201720, 223122, 235340, 253960, 260309, 282408, 297496, 353010, 371870, 380940, 446244, 470680, 520618, 557805, 706020, 743740, 761880, 780927, 892488, 1041236, 1115610, 1301545, 1412040, 1487480, 1524667, 1561854, 2082472, 2231220, 2603090, 3049334, 3123708, 3904635, 4462440, 4574001, 5206180, 6098668, 6247416, 7623335, 7809270, 9148002, 10412360, 10672669, 12197336, 15246670, 15618540, 18296004, 21345338, 22870005, 30493340, 31237080, 32018007, 36592008, 42690676, 45740010, 53363345, 60986680, 64036014, 85381352, 91480020, 106726690, 128072028, 160090035, 182960040, 213453380, 256144056, 320180070, 426906760, 640360140, 1280720280]

約数ペア:

[(1, 1280720280), (2, 640360140), (3, 426906760), (4, 320180070), (5, 256144056), (6, 213453380), (7, 182960040), (8, 160090035), (10, 128072028), (12, 106726690), (14, 91480020), (15, 85381352), (20, 64036014), (21, 60986680), (24, 53363345), (28, 45740010), (30, 42690676), (35, 36592008), (40, 32018007), (41, 31237080), (42, 30493340), (56, 22870005), (60, 21345338), (70, 18296004), (82, 15618540), (84, 15246670), (105, 12197336), (120, 10672669), (123, 10412360), (140, 9148002), (164, 7809270), (168, 7623335), (205, 6247416), (210, 6098668), (246, 5206180), (280, 4574001), (287, 4462440), (328, 3904635), (410, 3123708), (420, 3049334), (492, 2603090), (574, 2231220), (615, 2082472), (820, 1561854), (840, 1524667), (861, 1487480), (907, 1412040), (984, 1301545), (1148, 1115610), (1230, 1041236), (1435, 892488), (1640, 780927), (1681, 761880), (1722, 743740), (1814, 706020), (2296, 557805), (2460, 520618), (2721, 470680), (2870, 446244), (3362, 380940), (3444, 371870), (3628, 353010), (4305, 297496), (4535, 282408), (4920, 260309), (5043, 253960), (5442, 235340), (5740, 223122), (6349, 201720), (6724, 190470), (6888, 185935), (7256, 176505), (8405, 152376), (8610, 148748), (9070, 141204), (10086, 126980), (10884, 117670), (11480, 111561), (11767, 108840), (12698, 100860), (13448, 95235), (13605, 94136), (16810, 76188), (17220, 74374), (18140, 70602), (19047, 67240), (20172, 63490), (21768, 58835), (23534, 54420), (25215, 50792), (25396, 50430), (27210, 47068), (31745, 40344), (33620, 38094), (34440, 37187), (35301, 36280)]