138640312

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{2237}}^1$

素因数の和:2431

約数の個数: 32

約数和(自身を含む): 266411520

約数和(自身を除く): 127771208

約数列:

[1, 2, 4, 8, 61, 122, 127, 244, 254, 488, 508, 1016, 2237, 4474, 7747, 8948, 15494, 17896, 30988, 61976, 136457, 272914, 284099, 545828, 568198, 1091656, 1136396, 2272792, 17330039, 34660078, 69320156, 138640312]

約数ペア:

[(1, 138640312), (2, 69320156), (4, 34660078), (8, 17330039), (61, 2272792), (122, 1136396), (127, 1091656), (244, 568198), (254, 545828), (488, 284099), (508, 272914), (1016, 136457), (2237, 61976), (4474, 30988), (7747, 17896), (8948, 15494)]