68894878

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{317}}^1\times {\mathrm{643}}^1$

素因数の和:988

約数の個数: 24

約数和(自身を含む): 112430808

約数和(自身を除く): 43535930

約数列:

[1, 2, 13, 26, 169, 317, 338, 634, 643, 1286, 4121, 8242, 8359, 16718, 53573, 107146, 108667, 203831, 217334, 407662, 2649803, 5299606, 34447439, 68894878]

約数ペア:

[(1, 68894878), (2, 34447439), (13, 5299606), (26, 2649803), (169, 407662), (317, 217334), (338, 203831), (634, 108667), (643, 107146), (1286, 53573), (4121, 16718), (8242, 8359)]