20606890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2819}}^1$

素因数の和:2886

約数の個数: 32

約数和(自身を含む): 40201920

約数和(自身を除く): 19595030

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2819, 3655, 5638, 7310, 14095, 28190, 47923, 95846, 121217, 239615, 242434, 479230, 606085, 1212170, 2060689, 4121378, 10303445, 20606890]

約数ペア:

[(1, 20606890), (2, 10303445), (5, 4121378), (10, 2060689), (17, 1212170), (34, 606085), (43, 479230), (85, 242434), (86, 239615), (170, 121217), (215, 95846), (430, 47923), (731, 28190), (1462, 14095), (2819, 7310), (3655, 5638)]