83749780

素因数分解:

$2^2\times 5^1\times {\mathrm{4187489}}^1$

素因数の和:4187498

約数の個数: 12

約数和(自身を含む): 175874580

約数和(自身を除く): 92124800

約数列:

[1, 2, 4, 5, 10, 20, 4187489, 8374978, 16749956, 20937445, 41874890, 83749780]

約数ペア:

[(1, 83749780), (2, 41874890), (4, 20937445), (5, 16749956), (10, 8374978), (20, 4187489)]