90780004

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{7927}}^1$

素因数の和:8347

約数の個数: 24

約数和(自身を含む): 182026880

約数和(自身を除く): 91246876

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1636, 2863, 5726, 7927, 11452, 15854, 31708, 55489, 110978, 221956, 3242143, 6484286, 12968572, 22695001, 45390002, 90780004]

約数ペア:

[(1, 90780004), (2, 45390002), (4, 22695001), (7, 12968572), (14, 6484286), (28, 3242143), (409, 221956), (818, 110978), (1636, 55489), (2863, 31708), (5726, 15854), (7927, 11452)]