25887740

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2543}}^1$

素因数の和:3061

約数の個数: 24

約数和(自身を含む): 54492480

約数和(自身を除く): 28604740

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2543, 2545, 5086, 5090, 10172, 10180, 12715, 25430, 50860, 1294387, 2588774, 5177548, 6471935, 12943870, 25887740]

約数ペア:

[(1, 25887740), (2, 12943870), (4, 6471935), (5, 5177548), (10, 2588774), (20, 1294387), (509, 50860), (1018, 25430), (2036, 12715), (2543, 10180), (2545, 10172), (5086, 5090)]