20512019942

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{61}}^2\times {\mathrm{293}}^1\times {\mathrm{409}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 32832203040

約数和(自身を除く): 12320183098

約数列:

[1, 2, 23, 46, 61, 122, 293, 409, 586, 818, 1403, 2806, 3721, 6739, 7442, 9407, 13478, 17873, 18814, 24949, 35746, 49898, 85583, 119837, 171166, 239674, 411079, 573827, 822158, 1090253, 1147654, 1521889, 2180506, 2756251, 3043778, 5512502, 7310057, 14620114, 25075819, 35003447, 50151638, 70006894, 168131311, 336262622, 445913477, 891826954, 10256009971, 20512019942]

約数ペア:

[(1, 20512019942), (2, 10256009971), (23, 891826954), (46, 445913477), (61, 336262622), (122, 168131311), (293, 70006894), (409, 50151638), (586, 35003447), (818, 25075819), (1403, 14620114), (2806, 7310057), (3721, 5512502), (6739, 3043778), (7442, 2756251), (9407, 2180506), (13478, 1521889), (17873, 1147654), (18814, 1090253), (24949, 822158), (35746, 573827), (49898, 411079), (85583, 239674), (119837, 171166)]