81868144

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{124799}}^1$

素因数の和:124848

約数の個数: 20

約数和(自身を含む): 162489600

約数和(自身を除く): 80621456

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 124799, 249598, 499196, 998392, 1996784, 5116759, 10233518, 20467036, 40934072, 81868144]

約数ペア:

[(1, 81868144), (2, 40934072), (4, 20467036), (8, 10233518), (16, 5116759), (41, 1996784), (82, 998392), (164, 499196), (328, 249598), (656, 124799)]