28381080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:170

約数の個数: 256

約数和(自身を含む): 110315520

約数和(自身を除く): 81934440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 23, 24, 26, 28, 30, 35, 39, 40, 42, 46, 52, 56, 60, 65, 69, 70, 78, 84, 91, 92, 104, 105, 113, 115, 120, 130, 138, 140, 156, 161, 168, 182, 184, 195, 210, 226, 230, 260, 273, 276, 280, 299, 312, 322, 339, 345, 364, 390, 420, 452, 455, 460, 483, 520, 546, 552, 565, 598, 644, 678, 690, 728, 780, 791, 805, 840, 897, 904, 910, 920, 966, 1092, 1130, 1196, 1288, 1356, 1365, 1380, 1469, 1495, 1560, 1582, 1610, 1695, 1794, 1820, 1932, 2093, 2184, 2260, 2373, 2392, 2415, 2599, 2712, 2730, 2760, 2938, 2990, 3164, 3220, 3390, 3588, 3640, 3864, 3955, 4186, 4407, 4485, 4520, 4746, 4830, 5198, 5460, 5876, 5980, 6279, 6328, 6440, 6780, 7176, 7345, 7797, 7910, 8372, 8814, 8970, 9492, 9660, 10283, 10396, 10465, 10920, 11752, 11865, 11960, 12558, 12995, 13560, 14690, 15594, 15820, 16744, 17628, 17940, 18193, 18984, 19320, 20566, 20792, 20930, 22035, 23730, 25116, 25990, 29380, 30849, 31188, 31395, 31640, 33787, 35256, 35880, 36386, 38985, 41132, 41860, 44070, 47460, 50232, 51415, 51980, 54579, 58760, 61698, 62376, 62790, 67574, 72772, 77970, 82264, 83720, 88140, 90965, 94920, 101361, 102830, 103960, 109158, 123396, 125580, 135148, 145544, 154245, 155940, 168935, 176280, 181930, 202722, 205660, 218316, 236509, 246792, 251160, 270296, 272895, 308490, 311880, 337870, 363860, 405444, 411320, 436632, 473018, 506805, 545790, 616980, 675740, 709527, 727720, 810888, 946036, 1013610, 1091580, 1182545, 1233960, 1351480, 1419054, 1892072, 2027220, 2183160, 2365090, 2838108, 3547635, 4054440, 4730180, 5676216, 7095270, 9460360, 14190540, 28381080]

約数ペア:

[(1, 28381080), (2, 14190540), (3, 9460360), (4, 7095270), (5, 5676216), (6, 4730180), (7, 4054440), (8, 3547635), (10, 2838108), (12, 2365090), (13, 2183160), (14, 2027220), (15, 1892072), (20, 1419054), (21, 1351480), (23, 1233960), (24, 1182545), (26, 1091580), (28, 1013610), (30, 946036), (35, 810888), (39, 727720), (40, 709527), (42, 675740), (46, 616980), (52, 545790), (56, 506805), (60, 473018), (65, 436632), (69, 411320), (70, 405444), (78, 363860), (84, 337870), (91, 311880), (92, 308490), (104, 272895), (105, 270296), (113, 251160), (115, 246792), (120, 236509), (130, 218316), (138, 205660), (140, 202722), (156, 181930), (161, 176280), (168, 168935), (182, 155940), (184, 154245), (195, 145544), (210, 135148), (226, 125580), (230, 123396), (260, 109158), (273, 103960), (276, 102830), (280, 101361), (299, 94920), (312, 90965), (322, 88140), (339, 83720), (345, 82264), (364, 77970), (390, 72772), (420, 67574), (452, 62790), (455, 62376), (460, 61698), (483, 58760), (520, 54579), (546, 51980), (552, 51415), (565, 50232), (598, 47460), (644, 44070), (678, 41860), (690, 41132), (728, 38985), (780, 36386), (791, 35880), (805, 35256), (840, 33787), (897, 31640), (904, 31395), (910, 31188), (920, 30849), (966, 29380), (1092, 25990), (1130, 25116), (1196, 23730), (1288, 22035), (1356, 20930), (1365, 20792), (1380, 20566), (1469, 19320), (1495, 18984), (1560, 18193), (1582, 17940), (1610, 17628), (1695, 16744), (1794, 15820), (1820, 15594), (1932, 14690), (2093, 13560), (2184, 12995), (2260, 12558), (2373, 11960), (2392, 11865), (2415, 11752), (2599, 10920), (2712, 10465), (2730, 10396), (2760, 10283), (2938, 9660), (2990, 9492), (3164, 8970), (3220, 8814), (3390, 8372), (3588, 7910), (3640, 7797), (3864, 7345), (3955, 7176), (4186, 6780), (4407, 6440), (4485, 6328), (4520, 6279), (4746, 5980), (4830, 5876), (5198, 5460)]