78989120

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:400

約数の個数: 112

約数和(自身を含む): 217261440

約数和(自身を除く): 138272320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 179, 197, 224, 280, 320, 358, 394, 448, 560, 716, 788, 895, 985, 1120, 1253, 1379, 1432, 1576, 1790, 1970, 2240, 2506, 2758, 2864, 3152, 3580, 3940, 5012, 5516, 5728, 6265, 6304, 6895, 7160, 7880, 10024, 11032, 11456, 12530, 12608, 13790, 14320, 15760, 20048, 22064, 25060, 27580, 28640, 31520, 35263, 40096, 44128, 50120, 55160, 57280, 63040, 70526, 80192, 88256, 100240, 110320, 141052, 176315, 200480, 220640, 246841, 282104, 352630, 400960, 441280, 493682, 564208, 705260, 987364, 1128416, 1234205, 1410520, 1974728, 2256832, 2468410, 2821040, 3949456, 4936820, 5642080, 7898912, 9873640, 11284160, 15797824, 19747280, 39494560, 78989120]

約数ペア:

[(1, 78989120), (2, 39494560), (4, 19747280), (5, 15797824), (7, 11284160), (8, 9873640), (10, 7898912), (14, 5642080), (16, 4936820), (20, 3949456), (28, 2821040), (32, 2468410), (35, 2256832), (40, 1974728), (56, 1410520), (64, 1234205), (70, 1128416), (80, 987364), (112, 705260), (140, 564208), (160, 493682), (179, 441280), (197, 400960), (224, 352630), (280, 282104), (320, 246841), (358, 220640), (394, 200480), (448, 176315), (560, 141052), (716, 110320), (788, 100240), (895, 88256), (985, 80192), (1120, 70526), (1253, 63040), (1379, 57280), (1432, 55160), (1576, 50120), (1790, 44128), (1970, 40096), (2240, 35263), (2506, 31520), (2758, 28640), (2864, 27580), (3152, 25060), (3580, 22064), (3940, 20048), (5012, 15760), (5516, 14320), (5728, 13790), (6265, 12608), (6304, 12530), (6895, 11456), (7160, 11032), (7880, 10024)]