25555216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1999}}^1$

素因数の和:2071

約数の個数: 40

約数和(自身を含む): 53568000

約数和(自身を除く): 28012784

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 136, 188, 272, 376, 752, 799, 1598, 1999, 3196, 3998, 6392, 7996, 12784, 15992, 31984, 33983, 67966, 93953, 135932, 187906, 271864, 375812, 543728, 751624, 1503248, 1597201, 3194402, 6388804, 12777608, 25555216]

約数ペア:

[(1, 25555216), (2, 12777608), (4, 6388804), (8, 3194402), (16, 1597201), (17, 1503248), (34, 751624), (47, 543728), (68, 375812), (94, 271864), (136, 187906), (188, 135932), (272, 93953), (376, 67966), (752, 33983), (799, 31984), (1598, 15992), (1999, 12784), (3196, 7996), (3998, 6392)]