66778828

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{1951}}^1$

素因数の和:2197

約数の個数: 24

約数和(自身を含む): 120243200

約数和(自身を除く): 53464372

約数列:

[1, 2, 4, 43, 86, 172, 199, 398, 796, 1951, 3902, 7804, 8557, 17114, 34228, 83893, 167786, 335572, 388249, 776498, 1552996, 16694707, 33389414, 66778828]

約数ペア:

[(1, 66778828), (2, 33389414), (4, 16694707), (43, 1552996), (86, 776498), (172, 388249), (199, 335572), (398, 167786), (796, 83893), (1951, 34228), (3902, 17114), (7804, 8557)]