398836990

素因数分解:

$2^1\times 5^1\times {\mathrm{4229}}^1\times {\mathrm{9431}}^1$

素因数の和:13667

約数の個数: 16

約数和(自身を含む): 718152480

約数和(自身を除く): 319315490

約数列:

[1, 2, 5, 10, 4229, 8458, 9431, 18862, 21145, 42290, 47155, 94310, 39883699, 79767398, 199418495, 398836990]

約数ペア:

[(1, 398836990), (2, 199418495), (5, 79767398), (10, 39883699), (4229, 94310), (8458, 47155), (9431, 42290), (18862, 21145)]