68072240

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1733}}^1$

素因数の和:2237

約数の個数: 40

約数和(自身を含む): 158681808

約数和(自身を除く): 90609568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1733, 1964, 2455, 3466, 3928, 4910, 6932, 7856, 8665, 9820, 13864, 17330, 19640, 27728, 34660, 39280, 69320, 138640, 850903, 1701806, 3403612, 4254515, 6807224, 8509030, 13614448, 17018060, 34036120, 68072240]

約数ペア:

[(1, 68072240), (2, 34036120), (4, 17018060), (5, 13614448), (8, 8509030), (10, 6807224), (16, 4254515), (20, 3403612), (40, 1701806), (80, 850903), (491, 138640), (982, 69320), (1733, 39280), (1964, 34660), (2455, 27728), (3466, 19640), (3928, 17330), (4910, 13864), (6932, 9820), (7856, 8665)]