28405440

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{1409}}^1$

素因数の和:1439

約数の個数: 168

約数和(自身を含む): 111739680

約数和(自身を除く): 83334240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1409, 1440, 1680, 2016, 2240, 2520, 2818, 2880, 3360, 4032, 4227, 5040, 5636, 6720, 7045, 8454, 9863, 10080, 11272, 12681, 14090, 16908, 19726, 20160, 21135, 22544, 25362, 28180, 29589, 33816, 39452, 42270, 45088, 49315, 50724, 56360, 59178, 63405, 67632, 78904, 84540, 88767, 90176, 98630, 101448, 112720, 118356, 126810, 135264, 147945, 157808, 169080, 177534, 197260, 202896, 225440, 236712, 253620, 270528, 295890, 315616, 338160, 355068, 394520, 405792, 443835, 450880, 473424, 507240, 591780, 631232, 676320, 710136, 789040, 811584, 887670, 946848, 1014480, 1183560, 1352640, 1420272, 1578080, 1775340, 1893696, 2028960, 2367120, 2840544, 3156160, 3550680, 4057920, 4734240, 5681088, 7101360, 9468480, 14202720, 28405440]

約数ペア:

[(1, 28405440), (2, 14202720), (3, 9468480), (4, 7101360), (5, 5681088), (6, 4734240), (7, 4057920), (8, 3550680), (9, 3156160), (10, 2840544), (12, 2367120), (14, 2028960), (15, 1893696), (16, 1775340), (18, 1578080), (20, 1420272), (21, 1352640), (24, 1183560), (28, 1014480), (30, 946848), (32, 887670), (35, 811584), (36, 789040), (40, 710136), (42, 676320), (45, 631232), (48, 591780), (56, 507240), (60, 473424), (63, 450880), (64, 443835), (70, 405792), (72, 394520), (80, 355068), (84, 338160), (90, 315616), (96, 295890), (105, 270528), (112, 253620), (120, 236712), (126, 225440), (140, 202896), (144, 197260), (160, 177534), (168, 169080), (180, 157808), (192, 147945), (210, 135264), (224, 126810), (240, 118356), (252, 112720), (280, 101448), (288, 98630), (315, 90176), (320, 88767), (336, 84540), (360, 78904), (420, 67632), (448, 63405), (480, 59178), (504, 56360), (560, 50724), (576, 49315), (630, 45088), (672, 42270), (720, 39452), (840, 33816), (960, 29589), (1008, 28180), (1120, 25362), (1260, 22544), (1344, 21135), (1409, 20160), (1440, 19726), (1680, 16908), (2016, 14090), (2240, 12681), (2520, 11272), (2818, 10080), (2880, 9863), (3360, 8454), (4032, 7045), (4227, 6720), (5040, 5636)]