13879420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6871}}^1$

素因数の和:6981

約数の個数: 24

約数和(自身を含む): 29439648

約数和(自身を除く): 15560228

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 6871, 13742, 27484, 34355, 68710, 137420, 693971, 1387942, 2775884, 3469855, 6939710, 13879420]

約数ペア:

[(1, 13879420), (2, 6939710), (4, 3469855), (5, 2775884), (10, 1387942), (20, 693971), (101, 137420), (202, 68710), (404, 34355), (505, 27484), (1010, 13742), (2020, 6871)]