20156320

素因数分解:

$2^5\times 5^1\times {\mathrm{263}}^1\times {\mathrm{479}}^1$

素因数の和:757

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 27743840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 263, 479, 526, 958, 1052, 1315, 1916, 2104, 2395, 2630, 3832, 4208, 4790, 5260, 7664, 8416, 9580, 10520, 15328, 19160, 21040, 38320, 42080, 76640, 125977, 251954, 503908, 629885, 1007816, 1259770, 2015632, 2519540, 4031264, 5039080, 10078160, 20156320]

約数ペア:

[(1, 20156320), (2, 10078160), (4, 5039080), (5, 4031264), (8, 2519540), (10, 2015632), (16, 1259770), (20, 1007816), (32, 629885), (40, 503908), (80, 251954), (160, 125977), (263, 76640), (479, 42080), (526, 38320), (958, 21040), (1052, 19160), (1315, 15328), (1916, 10520), (2104, 9580), (2395, 8416), (2630, 7664), (3832, 5260), (4208, 4790)]