25778260

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{2089}}^1$

素因数の和:2715

約数の個数: 24

約数和(自身を含む): 54248040

約数和(自身を除く): 28469780

約数列:

[1, 2, 4, 5, 10, 20, 617, 1234, 2089, 2468, 3085, 4178, 6170, 8356, 10445, 12340, 20890, 41780, 1288913, 2577826, 5155652, 6444565, 12889130, 25778260]

約数ペア:

[(1, 25778260), (2, 12889130), (4, 6444565), (5, 5155652), (10, 2577826), (20, 1288913), (617, 41780), (1234, 20890), (2089, 12340), (2468, 10445), (3085, 8356), (4178, 6170)]