80495547380

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2693}}^1\times {\mathrm{10909}}^1$

素因数の和:13748

約数の個数: 48

約数和(自身を含む): 170353365840

約数和(自身を除く): 89857818460

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2693, 2740, 5386, 10772, 10909, 13465, 21818, 26930, 43636, 53860, 54545, 109090, 218180, 368941, 737882, 1475764, 1494533, 1844705, 2989066, 3689410, 5978132, 7378820, 7472665, 14945330, 29377937, 29890660, 58755874, 117511748, 146889685, 293779370, 587558740, 4024777369, 8049554738, 16099109476, 20123886845, 40247773690, 80495547380]

約数ペア:

[(1, 80495547380), (2, 40247773690), (4, 20123886845), (5, 16099109476), (10, 8049554738), (20, 4024777369), (137, 587558740), (274, 293779370), (548, 146889685), (685, 117511748), (1370, 58755874), (2693, 29890660), (2740, 29377937), (5386, 14945330), (10772, 7472665), (10909, 7378820), (13465, 5978132), (21818, 3689410), (26930, 2989066), (43636, 1844705), (53860, 1494533), (54545, 1475764), (109090, 737882), (218180, 368941)]