17919440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2909}}^1$

素因数の和:2940

約数の個数: 80

約数和(自身を含む): 51960960

約数和(自身を除く): 34041520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 2909, 3080, 5818, 6160, 11636, 14545, 20363, 23272, 29090, 31999, 40726, 46544, 58180, 63998, 81452, 101815, 116360, 127996, 159995, 162904, 203630, 223993, 232720, 255992, 319990, 325808, 407260, 447986, 511984, 639980, 814520, 895972, 1119965, 1279960, 1629040, 1791944, 2239930, 2559920, 3583888, 4479860, 8959720, 17919440]

約数ペア:

[(1, 17919440), (2, 8959720), (4, 4479860), (5, 3583888), (7, 2559920), (8, 2239930), (10, 1791944), (11, 1629040), (14, 1279960), (16, 1119965), (20, 895972), (22, 814520), (28, 639980), (35, 511984), (40, 447986), (44, 407260), (55, 325808), (56, 319990), (70, 255992), (77, 232720), (80, 223993), (88, 203630), (110, 162904), (112, 159995), (140, 127996), (154, 116360), (176, 101815), (220, 81452), (280, 63998), (308, 58180), (385, 46544), (440, 40726), (560, 31999), (616, 29090), (770, 23272), (880, 20363), (1232, 14545), (1540, 11636), (2909, 6160), (3080, 5818)]