78879728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{289999}}^1$

素因数の和:290024

約数の個数: 20

約数和(自身を含む): 161820000

約数和(自身を除く): 82940272

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289999, 579998, 1159996, 2319992, 4639984, 4929983, 9859966, 19719932, 39439864, 78879728]

約数ペア:

[(1, 78879728), (2, 39439864), (4, 19719932), (8, 9859966), (16, 4929983), (17, 4639984), (34, 2319992), (68, 1159996), (136, 579998), (272, 289999)]