1855406780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{85819}}^1$

素因数の和:85898

約数の個数: 48

約数和(自身を含む): 4152314880

約数和(自身を除く): 2296908100

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 2162, 4324, 5405, 10810, 21620, 85819, 171638, 343276, 429095, 858190, 1716380, 1973837, 3947674, 4033493, 7895348, 8066986, 9869185, 16133972, 19738370, 20167465, 39476740, 40334930, 80669860, 92770339, 185540678, 371081356, 463851695, 927703390, 1855406780]

約数ペア:

[(1, 1855406780), (2, 927703390), (4, 463851695), (5, 371081356), (10, 185540678), (20, 92770339), (23, 80669860), (46, 40334930), (47, 39476740), (92, 20167465), (94, 19738370), (115, 16133972), (188, 9869185), (230, 8066986), (235, 7895348), (460, 4033493), (470, 3947674), (940, 1973837), (1081, 1716380), (2162, 858190), (4324, 429095), (5405, 343276), (10810, 171638), (21620, 85819)]