400393840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:372

約数の個数: 240

約数和(自身を含む): 1234920960

約数和(自身を除く): 834527120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 80, 88, 95, 110, 112, 121, 133, 140, 152, 154, 176, 190, 209, 220, 242, 266, 280, 304, 308, 311, 380, 385, 418, 440, 484, 532, 560, 605, 616, 622, 665, 760, 770, 836, 847, 880, 968, 1045, 1064, 1210, 1232, 1244, 1330, 1463, 1520, 1540, 1555, 1672, 1694, 1936, 2090, 2128, 2177, 2299, 2420, 2488, 2660, 2926, 3080, 3110, 3344, 3388, 3421, 4180, 4235, 4354, 4598, 4840, 4976, 5320, 5852, 5909, 6160, 6220, 6776, 6842, 7315, 8360, 8470, 8708, 9196, 9680, 10640, 10885, 11495, 11704, 11818, 12440, 13552, 13684, 14630, 16093, 16720, 16940, 17105, 17416, 18392, 21770, 22990, 23408, 23636, 23947, 24880, 27368, 29260, 29545, 32186, 33880, 34210, 34832, 36784, 37631, 41363, 43540, 45980, 47272, 47894, 54736, 58520, 59090, 64372, 64999, 67760, 68420, 75262, 80465, 82726, 87080, 91960, 94544, 95788, 117040, 118180, 119735, 128744, 129998, 136840, 150524, 160930, 165452, 174160, 183920, 188155, 191576, 206815, 236360, 239470, 257488, 259996, 263417, 273680, 301048, 321860, 324995, 330904, 376310, 383152, 413630, 454993, 472720, 478940, 519992, 526834, 602096, 643720, 649990, 661808, 714989, 752620, 827260, 909986, 957880, 1039984, 1053668, 1287440, 1299980, 1317085, 1429978, 1505240, 1654520, 1819972, 1915760, 2107336, 2274965, 2599960, 2634170, 2859956, 3010480, 3309040, 3574945, 3639944, 4214672, 4549930, 5004923, 5199920, 5268340, 5719912, 7149890, 7279888, 9099860, 10009846, 10536680, 11439824, 14299780, 18199720, 20019692, 21073360, 25024615, 28599560, 36399440, 40039384, 50049230, 57199120, 80078768, 100098460, 200196920, 400393840]

約数ペア:

[(1, 400393840), (2, 200196920), (4, 100098460), (5, 80078768), (7, 57199120), (8, 50049230), (10, 40039384), (11, 36399440), (14, 28599560), (16, 25024615), (19, 21073360), (20, 20019692), (22, 18199720), (28, 14299780), (35, 11439824), (38, 10536680), (40, 10009846), (44, 9099860), (55, 7279888), (56, 7149890), (70, 5719912), (76, 5268340), (77, 5199920), (80, 5004923), (88, 4549930), (95, 4214672), (110, 3639944), (112, 3574945), (121, 3309040), (133, 3010480), (140, 2859956), (152, 2634170), (154, 2599960), (176, 2274965), (190, 2107336), (209, 1915760), (220, 1819972), (242, 1654520), (266, 1505240), (280, 1429978), (304, 1317085), (308, 1299980), (311, 1287440), (380, 1053668), (385, 1039984), (418, 957880), (440, 909986), (484, 827260), (532, 752620), (560, 714989), (605, 661808), (616, 649990), (622, 643720), (665, 602096), (760, 526834), (770, 519992), (836, 478940), (847, 472720), (880, 454993), (968, 413630), (1045, 383152), (1064, 376310), (1210, 330904), (1232, 324995), (1244, 321860), (1330, 301048), (1463, 273680), (1520, 263417), (1540, 259996), (1555, 257488), (1672, 239470), (1694, 236360), (1936, 206815), (2090, 191576), (2128, 188155), (2177, 183920), (2299, 174160), (2420, 165452), (2488, 160930), (2660, 150524), (2926, 136840), (3080, 129998), (3110, 128744), (3344, 119735), (3388, 118180), (3421, 117040), (4180, 95788), (4235, 94544), (4354, 91960), (4598, 87080), (4840, 82726), (4976, 80465), (5320, 75262), (5852, 68420), (5909, 67760), (6160, 64999), (6220, 64372), (6776, 59090), (6842, 58520), (7315, 54736), (8360, 47894), (8470, 47272), (8708, 45980), (9196, 43540), (9680, 41363), (10640, 37631), (10885, 36784), (11495, 34832), (11704, 34210), (11818, 33880), (12440, 32186), (13552, 29545), (13684, 29260), (14630, 27368), (16093, 24880), (16720, 23947), (16940, 23636), (17105, 23408), (17416, 22990), (18392, 21770)]