20176779740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2657}}^1\times {\mathrm{29207}}^1$

素因数の和:31886

約数の個数: 48

約数和(自身を含む): 45649300032

約数和(自身を除く): 25472520292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2657, 5314, 10628, 13285, 26570, 29207, 34541, 53140, 58414, 69082, 116828, 138164, 146035, 172705, 292070, 345410, 379691, 584140, 690820, 759382, 1518764, 1898455, 3796910, 7593820, 77602999, 155205998, 310411996, 388014995, 776029990, 1008838987, 1552059980, 2017677974, 4035355948, 5044194935, 10088389870, 20176779740]

約数ペア:

[(1, 20176779740), (2, 10088389870), (4, 5044194935), (5, 4035355948), (10, 2017677974), (13, 1552059980), (20, 1008838987), (26, 776029990), (52, 388014995), (65, 310411996), (130, 155205998), (260, 77602999), (2657, 7593820), (5314, 3796910), (10628, 1898455), (13285, 1518764), (26570, 759382), (29207, 690820), (34541, 584140), (53140, 379691), (58414, 345410), (69082, 292070), (116828, 172705), (138164, 146035)]