67761640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{16447}}^1$

素因数の和:16561

約数の個数: 32

約数和(自身を含む): 153953280

約数和(自身を除く): 86191640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 16447, 32894, 65788, 82235, 131576, 164470, 328940, 657880, 1694041, 3388082, 6776164, 8470205, 13552328, 16940410, 33880820, 67761640]

約数ペア:

[(1, 67761640), (2, 33880820), (4, 16940410), (5, 13552328), (8, 8470205), (10, 6776164), (20, 3388082), (40, 1694041), (103, 657880), (206, 328940), (412, 164470), (515, 131576), (824, 82235), (1030, 65788), (2060, 32894), (4120, 16447)]