20437648

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:392

約数の個数: 80

約数和(自身を含む): 50461056

約数和(自身を除く): 30023408

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 53, 56, 77, 88, 106, 112, 154, 176, 212, 308, 313, 371, 424, 583, 616, 626, 742, 848, 1166, 1232, 1252, 1484, 2191, 2332, 2504, 2968, 3443, 4081, 4382, 4664, 5008, 5936, 6886, 8162, 8764, 9328, 13772, 16324, 16589, 17528, 24101, 27544, 32648, 33178, 35056, 48202, 55088, 65296, 66356, 96404, 116123, 132712, 182479, 192808, 232246, 265424, 364958, 385616, 464492, 729916, 928984, 1277353, 1459832, 1857968, 2554706, 2919664, 5109412, 10218824, 20437648]

約数ペア:

[(1, 20437648), (2, 10218824), (4, 5109412), (7, 2919664), (8, 2554706), (11, 1857968), (14, 1459832), (16, 1277353), (22, 928984), (28, 729916), (44, 464492), (53, 385616), (56, 364958), (77, 265424), (88, 232246), (106, 192808), (112, 182479), (154, 132712), (176, 116123), (212, 96404), (308, 66356), (313, 65296), (371, 55088), (424, 48202), (583, 35056), (616, 33178), (626, 32648), (742, 27544), (848, 24101), (1166, 17528), (1232, 16589), (1252, 16324), (1484, 13772), (2191, 9328), (2332, 8764), (2504, 8162), (2968, 6886), (3443, 5936), (4081, 5008), (4382, 4664)]