25721410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17987}}^1$

素因数の和:18018

約数の個数: 32

約数和(自身を含む): 54395712

約数和(自身を除く): 28674302

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 17987, 35974, 89935, 179870, 197857, 233831, 395714, 467662, 989285, 1169155, 1978570, 2338310, 2572141, 5144282, 12860705, 25721410]

約数ペア:

[(1, 25721410), (2, 12860705), (5, 5144282), (10, 2572141), (11, 2338310), (13, 1978570), (22, 1169155), (26, 989285), (55, 467662), (65, 395714), (110, 233831), (130, 197857), (143, 179870), (286, 89935), (715, 35974), (1430, 17987)]