28179900

素因数分解:

$2^2\times 3^4\times 5^2\times 7^2\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 270

約数和(自身を含む): 107758728

約数和(自身を除く): 79578828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 49, 50, 54, 60, 63, 70, 71, 75, 81, 84, 90, 98, 100, 105, 108, 126, 135, 140, 142, 147, 150, 162, 175, 180, 189, 196, 210, 213, 225, 245, 252, 270, 284, 294, 300, 315, 324, 350, 355, 378, 405, 420, 426, 441, 450, 490, 497, 525, 540, 567, 588, 630, 639, 675, 700, 710, 735, 756, 810, 852, 882, 900, 945, 980, 994, 1050, 1065, 1134, 1225, 1260, 1278, 1323, 1350, 1420, 1470, 1491, 1575, 1620, 1764, 1775, 1890, 1917, 1988, 2025, 2100, 2130, 2205, 2268, 2450, 2485, 2556, 2646, 2700, 2835, 2940, 2982, 3150, 3195, 3479, 3550, 3675, 3780, 3834, 3969, 4050, 4260, 4410, 4473, 4725, 4900, 4970, 5292, 5325, 5670, 5751, 5964, 6300, 6390, 6615, 6958, 7100, 7350, 7455, 7668, 7938, 8100, 8820, 8946, 9450, 9585, 9940, 10437, 10650, 11025, 11340, 11502, 12425, 12780, 13230, 13419, 13916, 14175, 14700, 14910, 15876, 15975, 17395, 17892, 18900, 19170, 19845, 20874, 21300, 22050, 22365, 23004, 24850, 26460, 26838, 28350, 28755, 29820, 31311, 31950, 33075, 34790, 37275, 38340, 39690, 40257, 41748, 44100, 44730, 47925, 49700, 52185, 53676, 56700, 57510, 62622, 63900, 66150, 67095, 69580, 74550, 79380, 80514, 86975, 89460, 93933, 95850, 99225, 104370, 111825, 115020, 125244, 132300, 134190, 143775, 149100, 156555, 161028, 173950, 187866, 191700, 198450, 201285, 208740, 223650, 260925, 268380, 281799, 287550, 313110, 335475, 347900, 375732, 396900, 402570, 447300, 469665, 521850, 563598, 575100, 626220, 670950, 782775, 805140, 939330, 1006425, 1043700, 1127196, 1341900, 1408995, 1565550, 1878660, 2012850, 2348325, 2817990, 3131100, 4025700, 4696650, 5635980, 7044975, 9393300, 14089950, 28179900]

約数ペア:

[(1, 28179900), (2, 14089950), (3, 9393300), (4, 7044975), (5, 5635980), (6, 4696650), (7, 4025700), (9, 3131100), (10, 2817990), (12, 2348325), (14, 2012850), (15, 1878660), (18, 1565550), (20, 1408995), (21, 1341900), (25, 1127196), (27, 1043700), (28, 1006425), (30, 939330), (35, 805140), (36, 782775), (42, 670950), (45, 626220), (49, 575100), (50, 563598), (54, 521850), (60, 469665), (63, 447300), (70, 402570), (71, 396900), (75, 375732), (81, 347900), (84, 335475), (90, 313110), (98, 287550), (100, 281799), (105, 268380), (108, 260925), (126, 223650), (135, 208740), (140, 201285), (142, 198450), (147, 191700), (150, 187866), (162, 173950), (175, 161028), (180, 156555), (189, 149100), (196, 143775), (210, 134190), (213, 132300), (225, 125244), (245, 115020), (252, 111825), (270, 104370), (284, 99225), (294, 95850), (300, 93933), (315, 89460), (324, 86975), (350, 80514), (355, 79380), (378, 74550), (405, 69580), (420, 67095), (426, 66150), (441, 63900), (450, 62622), (490, 57510), (497, 56700), (525, 53676), (540, 52185), (567, 49700), (588, 47925), (630, 44730), (639, 44100), (675, 41748), (700, 40257), (710, 39690), (735, 38340), (756, 37275), (810, 34790), (852, 33075), (882, 31950), (900, 31311), (945, 29820), (980, 28755), (994, 28350), (1050, 26838), (1065, 26460), (1134, 24850), (1225, 23004), (1260, 22365), (1278, 22050), (1323, 21300), (1350, 20874), (1420, 19845), (1470, 19170), (1491, 18900), (1575, 17892), (1620, 17395), (1764, 15975), (1775, 15876), (1890, 14910), (1917, 14700), (1988, 14175), (2025, 13916), (2100, 13419), (2130, 13230), (2205, 12780), (2268, 12425), (2450, 11502), (2485, 11340), (2556, 11025), (2646, 10650), (2700, 10437), (2835, 9940), (2940, 9585), (2982, 9450), (3150, 8946), (3195, 8820), (3479, 8100), (3550, 7938), (3675, 7668), (3780, 7455), (3834, 7350), (3969, 7100), (4050, 6958), (4260, 6615), (4410, 6390), (4473, 6300), (4725, 5964), (4900, 5751), (4970, 5670), (5292, 5325)]