1619740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 3437280

約数和(自身を除く): 1817540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 743, 1090, 1486, 2180, 2972, 3715, 7430, 14860, 80987, 161974, 323948, 404935, 809870, 1619740]

約数ペア:

[(1, 1619740), (2, 809870), (4, 404935), (5, 323948), (10, 161974), (20, 80987), (109, 14860), (218, 7430), (436, 3715), (545, 2972), (743, 2180), (1090, 1486)]