1581145280

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:467

約数の個数: 224

約数和(自身を含む): 4477999680

約数和(自身を除く): 2896854400

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 109, 110, 130, 143, 160, 176, 208, 218, 220, 260, 286, 317, 320, 352, 416, 436, 440, 520, 545, 572, 634, 704, 715, 832, 872, 880, 1040, 1090, 1144, 1199, 1268, 1417, 1430, 1585, 1744, 1760, 2080, 2180, 2288, 2398, 2536, 2834, 2860, 3170, 3487, 3488, 3520, 4121, 4160, 4360, 4576, 4796, 5072, 5668, 5720, 5995, 6340, 6974, 6976, 7085, 8242, 8720, 9152, 9592, 10144, 11336, 11440, 11990, 12680, 13948, 14170, 15587, 16484, 17435, 17440, 19184, 20288, 20605, 22672, 22880, 23980, 25360, 27896, 28340, 31174, 32968, 34553, 34870, 34880, 38368, 41210, 45331, 45344, 45760, 47960, 50720, 55792, 56680, 62348, 65936, 69106, 69740, 76736, 77935, 82420, 90662, 90688, 95920, 101440, 111584, 113360, 124696, 131872, 138212, 139480, 155870, 164840, 172765, 181324, 191840, 223168, 226655, 226720, 249392, 263744, 276424, 278960, 311740, 329680, 345530, 362648, 380083, 383680, 449189, 453310, 453440, 498784, 552848, 557920, 623480, 659360, 691060, 725296, 760166, 898378, 906620, 997568, 1105696, 1115840, 1246960, 1318720, 1382120, 1450592, 1520332, 1796756, 1813240, 1900415, 2211392, 2245945, 2493920, 2764240, 2901184, 3040664, 3593512, 3626480, 3800830, 4491890, 4941079, 4987840, 5528480, 6081328, 7187024, 7252960, 7601660, 8983780, 9882158, 11056960, 12162656, 14374048, 14505920, 15203320, 17967560, 19764316, 24325312, 24705395, 28748096, 30406640, 35935120, 39528632, 49410790, 60813280, 71870240, 79057264, 98821580, 121626560, 143740480, 158114528, 197643160, 316229056, 395286320, 790572640, 1581145280]

約数ペア:

[(1, 1581145280), (2, 790572640), (4, 395286320), (5, 316229056), (8, 197643160), (10, 158114528), (11, 143740480), (13, 121626560), (16, 98821580), (20, 79057264), (22, 71870240), (26, 60813280), (32, 49410790), (40, 39528632), (44, 35935120), (52, 30406640), (55, 28748096), (64, 24705395), (65, 24325312), (80, 19764316), (88, 17967560), (104, 15203320), (109, 14505920), (110, 14374048), (130, 12162656), (143, 11056960), (160, 9882158), (176, 8983780), (208, 7601660), (218, 7252960), (220, 7187024), (260, 6081328), (286, 5528480), (317, 4987840), (320, 4941079), (352, 4491890), (416, 3800830), (436, 3626480), (440, 3593512), (520, 3040664), (545, 2901184), (572, 2764240), (634, 2493920), (704, 2245945), (715, 2211392), (832, 1900415), (872, 1813240), (880, 1796756), (1040, 1520332), (1090, 1450592), (1144, 1382120), (1199, 1318720), (1268, 1246960), (1417, 1115840), (1430, 1105696), (1585, 997568), (1744, 906620), (1760, 898378), (2080, 760166), (2180, 725296), (2288, 691060), (2398, 659360), (2536, 623480), (2834, 557920), (2860, 552848), (3170, 498784), (3487, 453440), (3488, 453310), (3520, 449189), (4121, 383680), (4160, 380083), (4360, 362648), (4576, 345530), (4796, 329680), (5072, 311740), (5668, 278960), (5720, 276424), (5995, 263744), (6340, 249392), (6974, 226720), (6976, 226655), (7085, 223168), (8242, 191840), (8720, 181324), (9152, 172765), (9592, 164840), (10144, 155870), (11336, 139480), (11440, 138212), (11990, 131872), (12680, 124696), (13948, 113360), (14170, 111584), (15587, 101440), (16484, 95920), (17435, 90688), (17440, 90662), (19184, 82420), (20288, 77935), (20605, 76736), (22672, 69740), (22880, 69106), (23980, 65936), (25360, 62348), (27896, 56680), (28340, 55792), (31174, 50720), (32968, 47960), (34553, 45760), (34870, 45344), (34880, 45331), (38368, 41210)]