20540836

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{499}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 37044000

約数和(自身を除く): 16503164

約数列:

[1, 2, 4, 41, 82, 164, 251, 499, 502, 998, 1004, 1996, 10291, 20459, 20582, 40918, 41164, 81836, 125249, 250498, 500996, 5135209, 10270418, 20540836]

約数ペア:

[(1, 20540836), (2, 10270418), (4, 5135209), (41, 500996), (82, 250498), (164, 125249), (251, 81836), (499, 41164), (502, 40918), (998, 20582), (1004, 20459), (1996, 10291)]