81653480

素因数分解:

$2^3\times 5^1\times {\mathrm{967}}^1\times {\mathrm{2111}}^1$

素因数の和:3089

約数の個数: 32

約数和(自身を含む): 183997440

約数和(自身を除く): 102343960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 967, 1934, 2111, 3868, 4222, 4835, 7736, 8444, 9670, 10555, 16888, 19340, 21110, 38680, 42220, 84440, 2041337, 4082674, 8165348, 10206685, 16330696, 20413370, 40826740, 81653480]

約数ペア:

[(1, 81653480), (2, 40826740), (4, 20413370), (5, 16330696), (8, 10206685), (10, 8165348), (20, 4082674), (40, 2041337), (967, 84440), (1934, 42220), (2111, 38680), (3868, 21110), (4222, 19340), (4835, 16888), (7736, 10555), (8444, 9670)]