87767020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{398941}}^1$

素因数の和:398961

約数の個数: 24

約数和(自身を含む): 201066768

約数和(自身を除く): 113299748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 398941, 797882, 1595764, 1994705, 3989410, 4388351, 7978820, 8776702, 17553404, 21941755, 43883510, 87767020]

約数ペア:

[(1, 87767020), (2, 43883510), (4, 21941755), (5, 17553404), (10, 8776702), (11, 7978820), (20, 4388351), (22, 3989410), (44, 1994705), (55, 1595764), (110, 797882), (220, 398941)]