12815740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{91541}}^1$

素因数の和:91557

約数の個数: 24

約数和(自身を含む): 30758112

約数和(自身を除く): 17942372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 91541, 183082, 366164, 457705, 640787, 915410, 1281574, 1830820, 2563148, 3203935, 6407870, 12815740]

約数ペア:

[(1, 12815740), (2, 6407870), (4, 3203935), (5, 2563148), (7, 1830820), (10, 1281574), (14, 915410), (20, 640787), (28, 457705), (35, 366164), (70, 183082), (140, 91541)]