20121207448

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1\times {\mathrm{1303}}^1$

素因数の和:2288

約数の個数: 64

約数和(自身を含む): 39568158720

約数和(自身を除く): 19446951272

約数列:

[1, 2, 4, 8, 31, 62, 71, 124, 142, 248, 284, 568, 877, 1303, 1754, 2201, 2606, 3508, 4402, 5212, 7016, 8804, 10424, 17608, 27187, 40393, 54374, 62267, 80786, 92513, 108748, 124534, 161572, 185026, 217496, 249068, 323144, 370052, 498136, 740104, 1142731, 1930277, 2285462, 2867903, 3860554, 4570924, 5735806, 7721108, 9141848, 11471612, 15442216, 22943224, 35424661, 70849322, 81133901, 141698644, 162267802, 283397288, 324535604, 649071208, 2515150931, 5030301862, 10060603724, 20121207448]

約数ペア:

[(1, 20121207448), (2, 10060603724), (4, 5030301862), (8, 2515150931), (31, 649071208), (62, 324535604), (71, 283397288), (124, 162267802), (142, 141698644), (248, 81133901), (284, 70849322), (568, 35424661), (877, 22943224), (1303, 15442216), (1754, 11471612), (2201, 9141848), (2606, 7721108), (3508, 5735806), (4402, 4570924), (5212, 3860554), (7016, 2867903), (8804, 2285462), (10424, 1930277), (17608, 1142731), (27187, 740104), (40393, 498136), (54374, 370052), (62267, 323144), (80786, 249068), (92513, 217496), (108748, 185026), (124534, 161572)]