3999655

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{601}}^1$

素因数の和:639

約数の個数: 16

約数和(自身を含む): 5287968

約数和(自身を除く): 1288313

約数列:

[1, 5, 11, 55, 121, 601, 605, 1331, 3005, 6611, 6655, 33055, 72721, 363605, 799931, 3999655]

約数ペア:

[(1, 3999655), (5, 799931), (11, 363605), (55, 72721), (121, 33055), (601, 6655), (605, 6611), (1331, 3005)]