157439344

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{239999}}^1$

素因数の和:240048

約数の個数: 20

約数和(自身を含む): 312480000

約数和(自身を除く): 155040656

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 239999, 479998, 959996, 1919992, 3839984, 9839959, 19679918, 39359836, 78719672, 157439344]

約数ペア:

[(1, 157439344), (2, 78719672), (4, 39359836), (8, 19679918), (16, 9839959), (41, 3839984), (82, 1919992), (164, 959996), (328, 479998), (656, 239999)]