64836440

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15737}}^1$

素因数の和:15851

約数の個数: 32

約数和(自身を含む): 147307680

約数和(自身を除く): 82471240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 15737, 31474, 62948, 78685, 125896, 157370, 314740, 629480, 1620911, 3241822, 6483644, 8104555, 12967288, 16209110, 32418220, 64836440]

約数ペア:

[(1, 64836440), (2, 32418220), (4, 16209110), (5, 12967288), (8, 8104555), (10, 6483644), (20, 3241822), (40, 1620911), (103, 629480), (206, 314740), (412, 157370), (515, 125896), (824, 78685), (1030, 62948), (2060, 31474), (4120, 15737)]