87142340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{256301}}^1$

素因数の和:256327

約数の個数: 24

約数和(自身を含む): 193764312

約数和(自身を除く): 106621972

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 256301, 512602, 1025204, 1281505, 2563010, 4357117, 5126020, 8714234, 17428468, 21785585, 43571170, 87142340]

約数ペア:

[(1, 87142340), (2, 43571170), (4, 21785585), (5, 17428468), (10, 8714234), (17, 5126020), (20, 4357117), (34, 2563010), (68, 1281505), (85, 1025204), (170, 512602), (340, 256301)]