168305920

素因数分解:

$2^8\times 5^1\times {\mathrm{131489}}^1$

素因数の和:131510

約数の個数: 36

約数和(自身を含む): 403148340

約数和(自身を除く): 234842420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 131489, 262978, 525956, 657445, 1051912, 1314890, 2103824, 2629780, 4207648, 5259560, 8415296, 10519120, 16830592, 21038240, 33661184, 42076480, 84152960, 168305920]

約数ペア:

[(1, 168305920), (2, 84152960), (4, 42076480), (5, 33661184), (8, 21038240), (10, 16830592), (16, 10519120), (20, 8415296), (32, 5259560), (40, 4207648), (64, 2629780), (80, 2103824), (128, 1314890), (160, 1051912), (256, 657445), (320, 525956), (640, 262978), (1280, 131489)]