20475395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1733}}^1$

素因数の和:1894

約数の個数: 16

約数和(自身を含む): 26218080

約数和(自身を除く): 5742685

約数列:

[1, 5, 17, 85, 139, 695, 1733, 2363, 8665, 11815, 29461, 147305, 240887, 1204435, 4095079, 20475395]

約数ペア:

[(1, 20475395), (5, 4095079), (17, 1204435), (85, 240887), (139, 147305), (695, 29461), (1733, 11815), (2363, 8665)]