20279984

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 40466160

約数和(自身を除く): 20186176

約数列:

[1, 2, 4, 8, 16, 73, 97, 146, 179, 194, 292, 358, 388, 584, 716, 776, 1168, 1432, 1552, 2864, 7081, 13067, 14162, 17363, 26134, 28324, 34726, 52268, 56648, 69452, 104536, 113296, 138904, 209072, 277808, 1267499, 2534998, 5069996, 10139992, 20279984]

約数ペア:

[(1, 20279984), (2, 10139992), (4, 5069996), (8, 2534998), (16, 1267499), (73, 277808), (97, 209072), (146, 138904), (179, 113296), (194, 104536), (292, 69452), (358, 56648), (388, 52268), (584, 34726), (716, 28324), (776, 26134), (1168, 17363), (1432, 14162), (1552, 13067), (2864, 7081)]