81492320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:257

約数の個数: 192

約数和(自身を含む): 246395520

約数和(自身を除く): 164903200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 32, 35, 40, 52, 56, 58, 65, 70, 80, 91, 104, 112, 116, 130, 140, 145, 160, 182, 193, 203, 208, 224, 232, 260, 280, 290, 364, 377, 386, 406, 416, 455, 464, 520, 560, 580, 728, 754, 772, 812, 910, 928, 965, 1015, 1040, 1120, 1160, 1351, 1456, 1508, 1544, 1624, 1820, 1885, 1930, 2030, 2080, 2320, 2509, 2639, 2702, 2912, 3016, 3088, 3248, 3640, 3770, 3860, 4060, 4640, 5018, 5278, 5404, 5597, 6032, 6176, 6496, 6755, 7280, 7540, 7720, 8120, 10036, 10556, 10808, 11194, 12064, 12545, 13195, 13510, 14560, 15080, 15440, 16240, 17563, 20072, 21112, 21616, 22388, 25090, 26390, 27020, 27985, 30160, 30880, 32480, 35126, 39179, 40144, 42224, 43232, 44776, 50180, 52780, 54040, 55970, 60320, 70252, 72761, 78358, 80288, 84448, 87815, 89552, 100360, 105560, 108080, 111940, 140504, 145522, 156716, 175630, 179104, 195895, 200720, 211120, 216160, 223880, 281008, 291044, 313432, 351260, 363805, 391790, 401440, 422240, 447760, 509327, 562016, 582088, 626864, 702520, 727610, 783580, 895520, 1018654, 1164176, 1253728, 1405040, 1455220, 1567160, 2037308, 2328352, 2546635, 2810080, 2910440, 3134320, 4074616, 5093270, 5820880, 6268640, 8149232, 10186540, 11641760, 16298464, 20373080, 40746160, 81492320]

約数ペア:

[(1, 81492320), (2, 40746160), (4, 20373080), (5, 16298464), (7, 11641760), (8, 10186540), (10, 8149232), (13, 6268640), (14, 5820880), (16, 5093270), (20, 4074616), (26, 3134320), (28, 2910440), (29, 2810080), (32, 2546635), (35, 2328352), (40, 2037308), (52, 1567160), (56, 1455220), (58, 1405040), (65, 1253728), (70, 1164176), (80, 1018654), (91, 895520), (104, 783580), (112, 727610), (116, 702520), (130, 626864), (140, 582088), (145, 562016), (160, 509327), (182, 447760), (193, 422240), (203, 401440), (208, 391790), (224, 363805), (232, 351260), (260, 313432), (280, 291044), (290, 281008), (364, 223880), (377, 216160), (386, 211120), (406, 200720), (416, 195895), (455, 179104), (464, 175630), (520, 156716), (560, 145522), (580, 140504), (728, 111940), (754, 108080), (772, 105560), (812, 100360), (910, 89552), (928, 87815), (965, 84448), (1015, 80288), (1040, 78358), (1120, 72761), (1160, 70252), (1351, 60320), (1456, 55970), (1508, 54040), (1544, 52780), (1624, 50180), (1820, 44776), (1885, 43232), (1930, 42224), (2030, 40144), (2080, 39179), (2320, 35126), (2509, 32480), (2639, 30880), (2702, 30160), (2912, 27985), (3016, 27020), (3088, 26390), (3248, 25090), (3640, 22388), (3770, 21616), (3860, 21112), (4060, 20072), (4640, 17563), (5018, 16240), (5278, 15440), (5404, 15080), (5597, 14560), (6032, 13510), (6176, 13195), (6496, 12545), (6755, 12064), (7280, 11194), (7540, 10808), (7720, 10556), (8120, 10036)]