87668020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{398491}}^1$

素因数の和:398511

約数の個数: 24

約数和(自身を含む): 200839968

約数和(自身を除く): 113171948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 398491, 796982, 1593964, 1992455, 3984910, 4383401, 7969820, 8766802, 17533604, 21917005, 43834010, 87668020]

約数ペア:

[(1, 87668020), (2, 43834010), (4, 21917005), (5, 17533604), (10, 8766802), (11, 7969820), (20, 4383401), (22, 3984910), (44, 1992455), (55, 1593964), (110, 796982), (220, 398491)]