18430720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1$

素因数の和:67

約数の個数: 216

約数和(自身を含む): 58720032

約数和(自身を除く): 40289312

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 32, 34, 35, 40, 44, 55, 56, 64, 68, 70, 77, 80, 85, 88, 110, 112, 119, 121, 128, 136, 140, 154, 160, 170, 176, 187, 220, 224, 238, 242, 256, 272, 280, 308, 320, 340, 352, 374, 385, 440, 448, 476, 484, 544, 560, 595, 605, 616, 640, 680, 704, 748, 770, 847, 880, 896, 935, 952, 968, 1088, 1120, 1190, 1210, 1232, 1280, 1309, 1360, 1408, 1496, 1540, 1694, 1760, 1792, 1870, 1904, 1936, 2057, 2176, 2240, 2380, 2420, 2464, 2618, 2720, 2816, 2992, 3080, 3388, 3520, 3740, 3808, 3872, 4114, 4235, 4352, 4480, 4760, 4840, 4928, 5236, 5440, 5984, 6160, 6545, 6776, 7040, 7480, 7616, 7744, 8228, 8470, 8960, 9520, 9680, 9856, 10285, 10472, 10880, 11968, 12320, 13090, 13552, 14080, 14399, 14960, 15232, 15488, 16456, 16940, 19040, 19360, 19712, 20570, 20944, 21760, 23936, 24640, 26180, 27104, 28798, 29920, 30464, 30976, 32912, 33880, 38080, 38720, 41140, 41888, 47872, 49280, 52360, 54208, 57596, 59840, 65824, 67760, 71995, 76160, 77440, 82280, 83776, 98560, 104720, 108416, 115192, 119680, 131648, 135520, 143990, 152320, 154880, 164560, 167552, 209440, 216832, 230384, 239360, 263296, 271040, 287980, 329120, 335104, 418880, 460768, 526592, 542080, 575960, 658240, 837760, 921536, 1084160, 1151920, 1316480, 1675520, 1843072, 2303840, 2632960, 3686144, 4607680, 9215360, 18430720]

約数ペア:

[(1, 18430720), (2, 9215360), (4, 4607680), (5, 3686144), (7, 2632960), (8, 2303840), (10, 1843072), (11, 1675520), (14, 1316480), (16, 1151920), (17, 1084160), (20, 921536), (22, 837760), (28, 658240), (32, 575960), (34, 542080), (35, 526592), (40, 460768), (44, 418880), (55, 335104), (56, 329120), (64, 287980), (68, 271040), (70, 263296), (77, 239360), (80, 230384), (85, 216832), (88, 209440), (110, 167552), (112, 164560), (119, 154880), (121, 152320), (128, 143990), (136, 135520), (140, 131648), (154, 119680), (160, 115192), (170, 108416), (176, 104720), (187, 98560), (220, 83776), (224, 82280), (238, 77440), (242, 76160), (256, 71995), (272, 67760), (280, 65824), (308, 59840), (320, 57596), (340, 54208), (352, 52360), (374, 49280), (385, 47872), (440, 41888), (448, 41140), (476, 38720), (484, 38080), (544, 33880), (560, 32912), (595, 30976), (605, 30464), (616, 29920), (640, 28798), (680, 27104), (704, 26180), (748, 24640), (770, 23936), (847, 21760), (880, 20944), (896, 20570), (935, 19712), (952, 19360), (968, 19040), (1088, 16940), (1120, 16456), (1190, 15488), (1210, 15232), (1232, 14960), (1280, 14399), (1309, 14080), (1360, 13552), (1408, 13090), (1496, 12320), (1540, 11968), (1694, 10880), (1760, 10472), (1792, 10285), (1870, 9856), (1904, 9680), (1936, 9520), (2057, 8960), (2176, 8470), (2240, 8228), (2380, 7744), (2420, 7616), (2464, 7480), (2618, 7040), (2720, 6776), (2816, 6545), (2992, 6160), (3080, 5984), (3388, 5440), (3520, 5236), (3740, 4928), (3808, 4840), (3872, 4760), (4114, 4480), (4235, 4352)]