678607615

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2671}}^1$

素因数の和:2768

約数の個数: 48

約数和(自身を含む): 1019827584

約数和(自身を除く): 341219969

約数列:

[1, 5, 7, 17, 35, 49, 61, 85, 119, 245, 305, 427, 595, 833, 1037, 2135, 2671, 2989, 4165, 5185, 7259, 13355, 14945, 18697, 36295, 45407, 50813, 93485, 130879, 162931, 227035, 254065, 317849, 654395, 814655, 1140517, 1589245, 2224943, 2769827, 5702585, 7983619, 11124715, 13849135, 19388789, 39918095, 96943945, 135721523, 678607615]

約数ペア:

[(1, 678607615), (5, 135721523), (7, 96943945), (17, 39918095), (35, 19388789), (49, 13849135), (61, 11124715), (85, 7983619), (119, 5702585), (245, 2769827), (305, 2224943), (427, 1589245), (595, 1140517), (833, 814655), (1037, 654395), (2135, 317849), (2671, 254065), (2989, 227035), (4165, 162931), (5185, 130879), (7259, 93485), (13355, 50813), (14945, 45407), (18697, 36295)]