197947280

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{19483}}^1$

素因数の和:19623

約数の個数: 40

約数和(自身を含む): 463875072

約数和(自身を除く): 265927792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 19483, 38966, 77932, 97415, 155864, 194830, 311728, 389660, 779320, 1558640, 2474341, 4948682, 9897364, 12371705, 19794728, 24743410, 39589456, 49486820, 98973640, 197947280]

約数ペア:

[(1, 197947280), (2, 98973640), (4, 49486820), (5, 39589456), (8, 24743410), (10, 19794728), (16, 12371705), (20, 9897364), (40, 4948682), (80, 2474341), (127, 1558640), (254, 779320), (508, 389660), (635, 311728), (1016, 194830), (1270, 155864), (2032, 97415), (2540, 77932), (5080, 38966), (10160, 19483)]