666839504

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{2473}}^1$

素因数の和:3387

約数の個数: 40

約数和(自身を含む): 1362085440

約数和(自身を除く): 695245936

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 887, 1774, 2473, 3548, 4946, 7096, 9892, 14192, 16853, 19784, 33706, 39568, 46987, 67412, 93974, 134824, 187948, 269648, 375896, 751792, 2193551, 4387102, 8774204, 17548408, 35096816, 41677469, 83354938, 166709876, 333419752, 666839504]

約数ペア:

[(1, 666839504), (2, 333419752), (4, 166709876), (8, 83354938), (16, 41677469), (19, 35096816), (38, 17548408), (76, 8774204), (152, 4387102), (304, 2193551), (887, 751792), (1774, 375896), (2473, 269648), (3548, 187948), (4946, 134824), (7096, 93974), (9892, 67412), (14192, 46987), (16853, 39568), (19784, 33706)]