81494288

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3821}}^1$

素因数の和:3903

約数の個数: 40

約数和(自身を含む): 166822656

約数和(自身を除く): 85328368

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 1333, 2666, 3821, 5332, 7642, 10664, 15284, 21328, 30568, 61136, 118451, 164303, 236902, 328606, 473804, 657212, 947608, 1314424, 1895216, 2628848, 5093393, 10186786, 20373572, 40747144, 81494288]

約数ペア:

[(1, 81494288), (2, 40747144), (4, 20373572), (8, 10186786), (16, 5093393), (31, 2628848), (43, 1895216), (62, 1314424), (86, 947608), (124, 657212), (172, 473804), (248, 328606), (344, 236902), (496, 164303), (688, 118451), (1333, 61136), (2666, 30568), (3821, 21328), (5332, 15284), (7642, 10664)]