78140720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139537}}^1$

素因数の和:139557

約数の個数: 40

約数和(自身を含む): 207632544

約数和(自身を除く): 129491824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139537, 279074, 558148, 697685, 976759, 1116296, 1395370, 1953518, 2232592, 2790740, 3907036, 4883795, 5581480, 7814072, 9767590, 11162960, 15628144, 19535180, 39070360, 78140720]

約数ペア:

[(1, 78140720), (2, 39070360), (4, 19535180), (5, 15628144), (7, 11162960), (8, 9767590), (10, 7814072), (14, 5581480), (16, 4883795), (20, 3907036), (28, 2790740), (35, 2232592), (40, 1953518), (56, 1395370), (70, 1116296), (80, 976759), (112, 697685), (140, 558148), (280, 279074), (560, 139537)]