1390895

素因数分解:

$5^1\times {\mathrm{11}}^4\times {\mathrm{19}}^1$

素因数の和:68

約数の個数: 20

約数和(自身を含む): 1932600

約数和(自身を除く): 541705

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 1045, 1331, 2299, 6655, 11495, 14641, 25289, 73205, 126445, 278179, 1390895]

約数ペア:

[(1, 1390895), (5, 278179), (11, 126445), (19, 73205), (55, 25289), (95, 14641), (121, 11495), (209, 6655), (605, 2299), (1045, 1331)]