25802120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15733}}^1$

素因数の和:15785

約数の個数: 32

約数和(自身を含む): 59474520

約数和(自身を除く): 33672400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15733, 31466, 62932, 78665, 125864, 157330, 314660, 629320, 645053, 1290106, 2580212, 3225265, 5160424, 6450530, 12901060, 25802120]

約数ペア:

[(1, 25802120), (2, 12901060), (4, 6450530), (5, 5160424), (8, 3225265), (10, 2580212), (20, 1290106), (40, 645053), (41, 629320), (82, 314660), (164, 157330), (205, 125864), (328, 78665), (410, 62932), (820, 31466), (1640, 15733)]