20326768

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2357}}^1$

素因数の和:2390

約数の個数: 60

約数和(自身を含む): 49999032

約数和(自身を除く): 29672264

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 308, 392, 539, 616, 784, 1078, 1232, 2156, 2357, 4312, 4714, 8624, 9428, 16499, 18856, 25927, 32998, 37712, 51854, 65996, 103708, 115493, 131992, 181489, 207416, 230986, 263984, 362978, 414832, 461972, 725956, 923944, 1270423, 1451912, 1847888, 2540846, 2903824, 5081692, 10163384, 20326768]

約数ペア:

[(1, 20326768), (2, 10163384), (4, 5081692), (7, 2903824), (8, 2540846), (11, 1847888), (14, 1451912), (16, 1270423), (22, 923944), (28, 725956), (44, 461972), (49, 414832), (56, 362978), (77, 263984), (88, 230986), (98, 207416), (112, 181489), (154, 131992), (176, 115493), (196, 103708), (308, 65996), (392, 51854), (539, 37712), (616, 32998), (784, 25927), (1078, 18856), (1232, 16499), (2156, 9428), (2357, 8624), (4312, 4714)]