20090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41}}^1$

素因数の和:62

約数の個数: 24

約数和(自身を含む): 43092

約数和(自身を除く): 23002

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 49, 70, 82, 98, 205, 245, 287, 410, 490, 574, 1435, 2009, 2870, 4018, 10045, 20090]

約数ペア:

[(1, 20090), (2, 10045), (5, 4018), (7, 2870), (10, 2009), (14, 1435), (35, 574), (41, 490), (49, 410), (70, 287), (82, 245), (98, 205)]