127340480

素因数分解:

$2^6\times 5^1\times {\mathrm{397939}}^1$

素因数の和:397956

約数の個数: 28

約数和(自身を含む): 303230280

約数和(自身を除く): 175889800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 397939, 795878, 1591756, 1989695, 3183512, 3979390, 6367024, 7958780, 12734048, 15917560, 25468096, 31835120, 63670240, 127340480]

約数ペア:

[(1, 127340480), (2, 63670240), (4, 31835120), (5, 25468096), (8, 15917560), (10, 12734048), (16, 7958780), (20, 6367024), (32, 3979390), (40, 3183512), (64, 1989695), (80, 1591756), (160, 795878), (320, 397939)]