221710720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{409}}^1$

素因数の和:457

約数の個数: 192

約数和(自身を含む): 667447200

約数和(自身を除く): 445736480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 121, 128, 140, 154, 160, 176, 220, 224, 242, 280, 308, 320, 352, 385, 409, 440, 448, 484, 560, 605, 616, 640, 704, 770, 818, 847, 880, 896, 968, 1120, 1210, 1232, 1408, 1540, 1636, 1694, 1760, 1936, 2045, 2240, 2420, 2464, 2863, 3080, 3272, 3388, 3520, 3872, 4090, 4235, 4480, 4499, 4840, 4928, 5726, 6160, 6544, 6776, 7040, 7744, 8180, 8470, 8998, 9680, 9856, 11452, 12320, 13088, 13552, 14315, 15488, 16360, 16940, 17996, 19360, 22495, 22904, 24640, 26176, 27104, 28630, 31493, 32720, 33880, 35992, 38720, 44990, 45808, 49280, 49489, 52352, 54208, 57260, 62986, 65440, 67760, 71984, 77440, 89980, 91616, 98978, 108416, 114520, 125972, 130880, 135520, 143968, 157465, 179960, 183232, 197956, 229040, 247445, 251944, 261760, 271040, 287936, 314930, 346423, 359920, 366464, 395912, 458080, 494890, 503888, 542080, 575872, 629860, 692846, 719840, 791824, 916160, 989780, 1007776, 1259720, 1385692, 1439680, 1583648, 1732115, 1832320, 1979560, 2015552, 2519440, 2771384, 2879360, 3167296, 3464230, 3959120, 4031104, 5038880, 5542768, 6334592, 6928460, 7918240, 10077760, 11085536, 13856920, 15836480, 20155520, 22171072, 27713840, 31672960, 44342144, 55427680, 110855360, 221710720]

約数ペア:

[(1, 221710720), (2, 110855360), (4, 55427680), (5, 44342144), (7, 31672960), (8, 27713840), (10, 22171072), (11, 20155520), (14, 15836480), (16, 13856920), (20, 11085536), (22, 10077760), (28, 7918240), (32, 6928460), (35, 6334592), (40, 5542768), (44, 5038880), (55, 4031104), (56, 3959120), (64, 3464230), (70, 3167296), (77, 2879360), (80, 2771384), (88, 2519440), (110, 2015552), (112, 1979560), (121, 1832320), (128, 1732115), (140, 1583648), (154, 1439680), (160, 1385692), (176, 1259720), (220, 1007776), (224, 989780), (242, 916160), (280, 791824), (308, 719840), (320, 692846), (352, 629860), (385, 575872), (409, 542080), (440, 503888), (448, 494890), (484, 458080), (560, 395912), (605, 366464), (616, 359920), (640, 346423), (704, 314930), (770, 287936), (818, 271040), (847, 261760), (880, 251944), (896, 247445), (968, 229040), (1120, 197956), (1210, 183232), (1232, 179960), (1408, 157465), (1540, 143968), (1636, 135520), (1694, 130880), (1760, 125972), (1936, 114520), (2045, 108416), (2240, 98978), (2420, 91616), (2464, 89980), (2863, 77440), (3080, 71984), (3272, 67760), (3388, 65440), (3520, 62986), (3872, 57260), (4090, 54208), (4235, 52352), (4480, 49489), (4499, 49280), (4840, 45808), (4928, 44990), (5726, 38720), (6160, 35992), (6544, 33880), (6776, 32720), (7040, 31493), (7744, 28630), (8180, 27104), (8470, 26176), (8998, 24640), (9680, 22904), (9856, 22495), (11452, 19360), (12320, 17996), (13088, 16940), (13552, 16360), (14315, 15488)]