25611280

素因数分解:

$2^4\times 5^1\times {\mathrm{320141}}^1$

素因数の和:320154

約数の個数: 20

約数和(自身を含む): 59546412

約数和(自身を除く): 33935132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320141, 640282, 1280564, 1600705, 2561128, 3201410, 5122256, 6402820, 12805640, 25611280]

約数ペア:

[(1, 25611280), (2, 12805640), (4, 6402820), (5, 5122256), (8, 3201410), (10, 2561128), (16, 1600705), (20, 1280564), (40, 640282), (80, 320141)]