126781720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{509}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 308448000

約数和(自身を除く): 181666280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 479, 509, 520, 958, 1018, 1916, 2036, 2395, 2545, 3832, 4072, 4790, 5090, 6227, 6617, 9580, 10180, 12454, 13234, 19160, 20360, 24908, 26468, 31135, 33085, 49816, 52936, 62270, 66170, 124540, 132340, 243811, 249080, 264680, 487622, 975244, 1219055, 1950488, 2438110, 3169543, 4876220, 6339086, 9752440, 12678172, 15847715, 25356344, 31695430, 63390860, 126781720]

約数ペア:

[(1, 126781720), (2, 63390860), (4, 31695430), (5, 25356344), (8, 15847715), (10, 12678172), (13, 9752440), (20, 6339086), (26, 4876220), (40, 3169543), (52, 2438110), (65, 1950488), (104, 1219055), (130, 975244), (260, 487622), (479, 264680), (509, 249080), (520, 243811), (958, 132340), (1018, 124540), (1916, 66170), (2036, 62270), (2395, 52936), (2545, 49816), (3832, 33085), (4072, 31135), (4790, 26468), (5090, 24908), (6227, 20360), (6617, 19160), (9580, 13234), (10180, 12454)]