16281720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:115

約数の個数: 288

約数和(自身を含む): 67223520

約数和(自身を除く): 50941800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 49, 52, 56, 60, 63, 65, 70, 71, 72, 78, 84, 90, 91, 98, 104, 105, 117, 120, 126, 130, 140, 142, 147, 156, 168, 180, 182, 195, 196, 210, 213, 234, 245, 252, 260, 273, 280, 284, 294, 312, 315, 355, 360, 364, 390, 392, 420, 426, 441, 455, 468, 490, 497, 504, 520, 546, 568, 585, 588, 630, 637, 639, 710, 728, 735, 780, 819, 840, 852, 882, 910, 923, 936, 980, 994, 1065, 1092, 1170, 1176, 1260, 1274, 1278, 1365, 1420, 1470, 1491, 1560, 1638, 1704, 1764, 1820, 1846, 1911, 1960, 1988, 2130, 2184, 2205, 2340, 2485, 2520, 2548, 2556, 2730, 2769, 2840, 2940, 2982, 3185, 3195, 3276, 3479, 3528, 3640, 3692, 3822, 3976, 4095, 4260, 4410, 4473, 4615, 4680, 4970, 5096, 5112, 5460, 5538, 5733, 5880, 5964, 6370, 6390, 6461, 6552, 6958, 7384, 7455, 7644, 8190, 8307, 8520, 8820, 8946, 9230, 9555, 9940, 10437, 10920, 11076, 11466, 11928, 12740, 12780, 12922, 13845, 13916, 14910, 15288, 16380, 16614, 17395, 17640, 17892, 18460, 19110, 19383, 19880, 20874, 22152, 22365, 22932, 25480, 25560, 25844, 27690, 27832, 28665, 29820, 31311, 32305, 32760, 33228, 34790, 35784, 36920, 38220, 38766, 41535, 41748, 44730, 45227, 45864, 51688, 52185, 55380, 57330, 58149, 59640, 62622, 64610, 66456, 69580, 76440, 77532, 83070, 83496, 89460, 90454, 96915, 104370, 110760, 114660, 116298, 125244, 129220, 135681, 139160, 155064, 156555, 166140, 178920, 180908, 193830, 208740, 226135, 229320, 232596, 250488, 258440, 271362, 290745, 313110, 332280, 361816, 387660, 407043, 417480, 452270, 465192, 542724, 581490, 626220, 678405, 775320, 814086, 904540, 1085448, 1162980, 1252440, 1356810, 1628172, 1809080, 2035215, 2325960, 2713620, 3256344, 4070430, 5427240, 8140860, 16281720]

約数ペア:

[(1, 16281720), (2, 8140860), (3, 5427240), (4, 4070430), (5, 3256344), (6, 2713620), (7, 2325960), (8, 2035215), (9, 1809080), (10, 1628172), (12, 1356810), (13, 1252440), (14, 1162980), (15, 1085448), (18, 904540), (20, 814086), (21, 775320), (24, 678405), (26, 626220), (28, 581490), (30, 542724), (35, 465192), (36, 452270), (39, 417480), (40, 407043), (42, 387660), (45, 361816), (49, 332280), (52, 313110), (56, 290745), (60, 271362), (63, 258440), (65, 250488), (70, 232596), (71, 229320), (72, 226135), (78, 208740), (84, 193830), (90, 180908), (91, 178920), (98, 166140), (104, 156555), (105, 155064), (117, 139160), (120, 135681), (126, 129220), (130, 125244), (140, 116298), (142, 114660), (147, 110760), (156, 104370), (168, 96915), (180, 90454), (182, 89460), (195, 83496), (196, 83070), (210, 77532), (213, 76440), (234, 69580), (245, 66456), (252, 64610), (260, 62622), (273, 59640), (280, 58149), (284, 57330), (294, 55380), (312, 52185), (315, 51688), (355, 45864), (360, 45227), (364, 44730), (390, 41748), (392, 41535), (420, 38766), (426, 38220), (441, 36920), (455, 35784), (468, 34790), (490, 33228), (497, 32760), (504, 32305), (520, 31311), (546, 29820), (568, 28665), (585, 27832), (588, 27690), (630, 25844), (637, 25560), (639, 25480), (710, 22932), (728, 22365), (735, 22152), (780, 20874), (819, 19880), (840, 19383), (852, 19110), (882, 18460), (910, 17892), (923, 17640), (936, 17395), (980, 16614), (994, 16380), (1065, 15288), (1092, 14910), (1170, 13916), (1176, 13845), (1260, 12922), (1274, 12780), (1278, 12740), (1365, 11928), (1420, 11466), (1470, 11076), (1491, 10920), (1560, 10437), (1638, 9940), (1704, 9555), (1764, 9230), (1820, 8946), (1846, 8820), (1911, 8520), (1960, 8307), (1988, 8190), (2130, 7644), (2184, 7455), (2205, 7384), (2340, 6958), (2485, 6552), (2520, 6461), (2548, 6390), (2556, 6370), (2730, 5964), (2769, 5880), (2840, 5733), (2940, 5538), (2982, 5460), (3185, 5112), (3195, 5096), (3276, 4970), (3479, 4680), (3528, 4615), (3640, 4473), (3692, 4410), (3822, 4260), (3976, 4095)]