20005868

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 36103200

約数和(自身を除く): 16097332

約数列:

[1, 2, 4, 41, 82, 164, 199, 398, 613, 796, 1226, 2452, 8159, 16318, 25133, 32636, 50266, 100532, 121987, 243974, 487948, 5001467, 10002934, 20005868]

約数ペア:

[(1, 20005868), (2, 10002934), (4, 5001467), (41, 487948), (82, 243974), (164, 121987), (199, 100532), (398, 50266), (613, 32636), (796, 25133), (1226, 16318), (2452, 8159)]