678868

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 1274112

約数和(自身を除く): 595244

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 157, 188, 314, 628, 1081, 2162, 3611, 4324, 7222, 7379, 14444, 14758, 29516, 169717, 339434, 678868]

約数ペア:

[(1, 678868), (2, 339434), (4, 169717), (23, 29516), (46, 14758), (47, 14444), (92, 7379), (94, 7222), (157, 4324), (188, 3611), (314, 2162), (628, 1081)]