1966060

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 4158000

約数和(自身を除く): 2191940

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 499, 788, 985, 998, 1970, 1996, 2495, 3940, 4990, 9980, 98303, 196606, 393212, 491515, 983030, 1966060]

約数ペア:

[(1, 1966060), (2, 983030), (4, 491515), (5, 393212), (10, 196606), (20, 98303), (197, 9980), (394, 4990), (499, 3940), (788, 2495), (985, 1996), (998, 1970)]