20968225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{479}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 27855360

約数和(自身を除く): 6887135

約数列:

[1, 5, 17, 25, 85, 103, 425, 479, 515, 1751, 2395, 2575, 8143, 8755, 11975, 40715, 43775, 49337, 203575, 246685, 838729, 1233425, 4193645, 20968225]

約数ペア:

[(1, 20968225), (5, 4193645), (17, 1233425), (25, 838729), (85, 246685), (103, 203575), (425, 49337), (479, 43775), (515, 40715), (1751, 11975), (2395, 8755), (2575, 8143)]