21662080

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:228

約数の個数: 128

約数和(自身を含む): 60147360

約数和(自身を除く): 38485280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 160, 170, 176, 181, 187, 220, 272, 320, 340, 352, 362, 374, 440, 544, 640, 680, 704, 724, 748, 880, 905, 935, 1088, 1360, 1408, 1448, 1496, 1760, 1810, 1870, 1991, 2176, 2720, 2896, 2992, 3077, 3520, 3620, 3740, 3982, 5440, 5792, 5984, 6154, 7040, 7240, 7480, 7964, 9955, 10880, 11584, 11968, 12308, 14480, 14960, 15385, 15928, 19910, 23168, 23936, 24616, 28960, 29920, 30770, 31856, 33847, 39820, 49232, 57920, 59840, 61540, 63712, 67694, 79640, 98464, 115840, 119680, 123080, 127424, 135388, 159280, 169235, 196928, 246160, 254848, 270776, 318560, 338470, 393856, 492320, 541552, 637120, 676940, 984640, 1083104, 1274240, 1353880, 1969280, 2166208, 2707760, 4332416, 5415520, 10831040, 21662080]

約数ペア:

[(1, 21662080), (2, 10831040), (4, 5415520), (5, 4332416), (8, 2707760), (10, 2166208), (11, 1969280), (16, 1353880), (17, 1274240), (20, 1083104), (22, 984640), (32, 676940), (34, 637120), (40, 541552), (44, 492320), (55, 393856), (64, 338470), (68, 318560), (80, 270776), (85, 254848), (88, 246160), (110, 196928), (128, 169235), (136, 159280), (160, 135388), (170, 127424), (176, 123080), (181, 119680), (187, 115840), (220, 98464), (272, 79640), (320, 67694), (340, 63712), (352, 61540), (362, 59840), (374, 57920), (440, 49232), (544, 39820), (640, 33847), (680, 31856), (704, 30770), (724, 29920), (748, 28960), (880, 24616), (905, 23936), (935, 23168), (1088, 19910), (1360, 15928), (1408, 15385), (1448, 14960), (1496, 14480), (1760, 12308), (1810, 11968), (1870, 11584), (1991, 10880), (2176, 9955), (2720, 7964), (2896, 7480), (2992, 7240), (3077, 7040), (3520, 6154), (3620, 5984), (3740, 5792), (3982, 5440)]