28640640

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{2131}}^1$

素因数の和:2160

約数の個数: 128

約数和(自身を含む): 104382720

約数和(自身を除く): 75742080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2131, 2240, 2688, 3360, 4262, 4480, 6393, 6720, 8524, 10655, 12786, 13440, 14917, 17048, 21310, 25572, 29834, 31965, 34096, 42620, 44751, 51144, 59668, 63930, 68192, 74585, 85240, 89502, 102288, 119336, 127860, 136384, 149170, 170480, 179004, 204576, 223755, 238672, 255720, 272768, 298340, 340960, 358008, 409152, 447510, 477344, 511440, 596680, 681920, 716016, 818304, 895020, 954688, 1022880, 1193360, 1363840, 1432032, 1790040, 1909376, 2045760, 2386720, 2864064, 3580080, 4091520, 4773440, 5728128, 7160160, 9546880, 14320320, 28640640]

約数ペア:

[(1, 28640640), (2, 14320320), (3, 9546880), (4, 7160160), (5, 5728128), (6, 4773440), (7, 4091520), (8, 3580080), (10, 2864064), (12, 2386720), (14, 2045760), (15, 1909376), (16, 1790040), (20, 1432032), (21, 1363840), (24, 1193360), (28, 1022880), (30, 954688), (32, 895020), (35, 818304), (40, 716016), (42, 681920), (48, 596680), (56, 511440), (60, 477344), (64, 447510), (70, 409152), (80, 358008), (84, 340960), (96, 298340), (105, 272768), (112, 255720), (120, 238672), (128, 223755), (140, 204576), (160, 179004), (168, 170480), (192, 149170), (210, 136384), (224, 127860), (240, 119336), (280, 102288), (320, 89502), (336, 85240), (384, 74585), (420, 68192), (448, 63930), (480, 59668), (560, 51144), (640, 44751), (672, 42620), (840, 34096), (896, 31965), (960, 29834), (1120, 25572), (1344, 21310), (1680, 17048), (1920, 14917), (2131, 13440), (2240, 12786), (2688, 10655), (3360, 8524), (4262, 6720), (4480, 6393)]