254103680

素因数分解:

$2^7\times 5^1\times {\mathrm{397037}}^1$

素因数の和:397056

約数の個数: 32

約数和(自身を含む): 607468140

約数和(自身を除く): 353364460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 397037, 794074, 1588148, 1985185, 3176296, 3970370, 6352592, 7940740, 12705184, 15881480, 25410368, 31762960, 50820736, 63525920, 127051840, 254103680]

約数ペア:

[(1, 254103680), (2, 127051840), (4, 63525920), (5, 50820736), (8, 31762960), (10, 25410368), (16, 15881480), (20, 12705184), (32, 7940740), (40, 6352592), (64, 3970370), (80, 3176296), (128, 1985185), (160, 1588148), (320, 794074), (640, 397037)]