15789740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7243}}^1$

素因数の和:7361

約数の個数: 24

約数和(自身を含む): 33467280

約数和(自身を除く): 17677540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 7243, 14486, 28972, 36215, 72430, 144860, 789487, 1578974, 3157948, 3947435, 7894870, 15789740]

約数ペア:

[(1, 15789740), (2, 7894870), (4, 3947435), (5, 3157948), (10, 1578974), (20, 789487), (109, 144860), (218, 72430), (436, 36215), (545, 28972), (1090, 14486), (2180, 7243)]