155720960

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^2\times {\mathrm{337}}^1$

素因数の和:396

約数の個数: 108

約数和(自身を含む): 394833348

約数和(自身を除く): 239112388

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 337, 361, 380, 608, 640, 674, 722, 760, 1216, 1280, 1348, 1444, 1520, 1685, 1805, 2432, 2696, 2888, 3040, 3370, 3610, 4864, 5392, 5776, 6080, 6403, 6740, 7220, 10784, 11552, 12160, 12806, 13480, 14440, 21568, 23104, 24320, 25612, 26960, 28880, 32015, 43136, 46208, 51224, 53920, 57760, 64030, 86272, 92416, 102448, 107840, 115520, 121657, 128060, 204896, 215680, 231040, 243314, 256120, 409792, 431360, 462080, 486628, 512240, 608285, 819584, 973256, 1024480, 1216570, 1639168, 1946512, 2048960, 2433140, 3893024, 4097920, 4866280, 7786048, 8195840, 9732560, 15572096, 19465120, 31144192, 38930240, 77860480, 155720960]

約数ペア:

[(1, 155720960), (2, 77860480), (4, 38930240), (5, 31144192), (8, 19465120), (10, 15572096), (16, 9732560), (19, 8195840), (20, 7786048), (32, 4866280), (38, 4097920), (40, 3893024), (64, 2433140), (76, 2048960), (80, 1946512), (95, 1639168), (128, 1216570), (152, 1024480), (160, 973256), (190, 819584), (256, 608285), (304, 512240), (320, 486628), (337, 462080), (361, 431360), (380, 409792), (608, 256120), (640, 243314), (674, 231040), (722, 215680), (760, 204896), (1216, 128060), (1280, 121657), (1348, 115520), (1444, 107840), (1520, 102448), (1685, 92416), (1805, 86272), (2432, 64030), (2696, 57760), (2888, 53920), (3040, 51224), (3370, 46208), (3610, 43136), (4864, 32015), (5392, 28880), (5776, 26960), (6080, 25612), (6403, 24320), (6740, 23104), (7220, 21568), (10784, 14440), (11552, 13480), (12160, 12806)]