664790260

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{199039}}^1$

素因数の和:199215

約数の個数: 24

約数和(自身を含む): 1404426240

約数和(自身を除く): 739635980

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 199039, 398078, 796156, 995195, 1990390, 3980780, 33239513, 66479026, 132958052, 166197565, 332395130, 664790260]

約数ペア:

[(1, 664790260), (2, 332395130), (4, 166197565), (5, 132958052), (10, 66479026), (20, 33239513), (167, 3980780), (334, 1990390), (668, 995195), (835, 796156), (1670, 398078), (3340, 199039)]