20527900

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1993}}^1$

素因数の和:2110

約数の個数: 36

約数和(自身を含む): 45000592

約数和(自身を除く): 24472692

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 1993, 2060, 2575, 3986, 5150, 7972, 9965, 10300, 19930, 39860, 49825, 99650, 199300, 205279, 410558, 821116, 1026395, 2052790, 4105580, 5131975, 10263950, 20527900]

約数ペア:

[(1, 20527900), (2, 10263950), (4, 5131975), (5, 4105580), (10, 2052790), (20, 1026395), (25, 821116), (50, 410558), (100, 205279), (103, 199300), (206, 99650), (412, 49825), (515, 39860), (1030, 19930), (1993, 10300), (2060, 9965), (2575, 7972), (3986, 5150)]