191645140

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 408703680

約数和(自身を除く): 217058540

約数列:

[1, 2, 4, 5, 10, 20, 131, 193, 262, 379, 386, 524, 655, 758, 772, 965, 1310, 1516, 1895, 1930, 2620, 3790, 3860, 7580, 25283, 49649, 50566, 73147, 99298, 101132, 126415, 146294, 198596, 248245, 252830, 292588, 365735, 496490, 505660, 731470, 992980, 1462940, 9582257, 19164514, 38329028, 47911285, 95822570, 191645140]

約数ペア:

[(1, 191645140), (2, 95822570), (4, 47911285), (5, 38329028), (10, 19164514), (20, 9582257), (131, 1462940), (193, 992980), (262, 731470), (379, 505660), (386, 496490), (524, 365735), (655, 292588), (758, 252830), (772, 248245), (965, 198596), (1310, 146294), (1516, 126415), (1895, 101132), (1930, 99298), (2620, 73147), (3790, 50566), (3860, 49649), (7580, 25283)]