25651280

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1031}}^1$

素因数の和:1355

約数の個数: 40

約数和(自身を含む): 59889024

約数和(自身を除く): 34237744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1031, 1244, 1555, 2062, 2488, 3110, 4124, 4976, 5155, 6220, 8248, 10310, 12440, 16496, 20620, 24880, 41240, 82480, 320641, 641282, 1282564, 1603205, 2565128, 3206410, 5130256, 6412820, 12825640, 25651280]

約数ペア:

[(1, 25651280), (2, 12825640), (4, 6412820), (5, 5130256), (8, 3206410), (10, 2565128), (16, 1603205), (20, 1282564), (40, 641282), (80, 320641), (311, 82480), (622, 41240), (1031, 24880), (1244, 20620), (1555, 16496), (2062, 12440), (2488, 10310), (3110, 8248), (4124, 6220), (4976, 5155)]