678484772

素因数分解:

$2^2\times 7^2\times {\mathrm{661}}^1\times {\mathrm{5237}}^1$

素因数の和:5916

約数の個数: 36

約数和(自身を含む): 1383554844

約数和(自身を除く): 705070072

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 661, 1322, 2644, 4627, 5237, 9254, 10474, 18508, 20948, 32389, 36659, 64778, 73318, 129556, 146636, 256613, 513226, 1026452, 3461657, 6923314, 13846628, 24231599, 48463198, 96926396, 169621193, 339242386, 678484772]

約数ペア:

[(1, 678484772), (2, 339242386), (4, 169621193), (7, 96926396), (14, 48463198), (28, 24231599), (49, 13846628), (98, 6923314), (196, 3461657), (661, 1026452), (1322, 513226), (2644, 256613), (4627, 146636), (5237, 129556), (9254, 73318), (10474, 64778), (18508, 36659), (20948, 32389)]