25539320

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2053}}^1$

素因数の和:2375

約数の個数: 32

約数和(自身を含む): 57676320

約数和(自身を除く): 32137000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2053, 2488, 3110, 4106, 6220, 8212, 10265, 12440, 16424, 20530, 41060, 82120, 638483, 1276966, 2553932, 3192415, 5107864, 6384830, 12769660, 25539320]

約数ペア:

[(1, 25539320), (2, 12769660), (4, 6384830), (5, 5107864), (8, 3192415), (10, 2553932), (20, 1276966), (40, 638483), (311, 82120), (622, 41060), (1244, 20530), (1555, 16424), (2053, 12440), (2488, 10265), (3110, 8212), (4106, 6220)]