209540072

素因数分解:

$2^3\times 7^4\times {\mathrm{10909}}^1$

素因数の和:10943

約数の個数: 40

約数和(自身を含む): 458383650

約数和(自身を除く): 248843578

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2401, 2744, 4802, 9604, 10909, 19208, 21818, 43636, 76363, 87272, 152726, 305452, 534541, 610904, 1069082, 2138164, 3741787, 4276328, 7483574, 14967148, 26192509, 29934296, 52385018, 104770036, 209540072]

約数ペア:

[(1, 209540072), (2, 104770036), (4, 52385018), (7, 29934296), (8, 26192509), (14, 14967148), (28, 7483574), (49, 4276328), (56, 3741787), (98, 2138164), (196, 1069082), (343, 610904), (392, 534541), (686, 305452), (1372, 152726), (2401, 87272), (2744, 76363), (4802, 43636), (9604, 21818), (10909, 19208)]