80165560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{337}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 191037600

約数和(自身を除く): 110872040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 313, 337, 380, 626, 674, 760, 1252, 1348, 1565, 1685, 2504, 2696, 3130, 3370, 5947, 6260, 6403, 6740, 11894, 12520, 12806, 13480, 23788, 25612, 29735, 32015, 47576, 51224, 59470, 64030, 105481, 118940, 128060, 210962, 237880, 256120, 421924, 527405, 843848, 1054810, 2004139, 2109620, 4008278, 4219240, 8016556, 10020695, 16033112, 20041390, 40082780, 80165560]

約数ペア:

[(1, 80165560), (2, 40082780), (4, 20041390), (5, 16033112), (8, 10020695), (10, 8016556), (19, 4219240), (20, 4008278), (38, 2109620), (40, 2004139), (76, 1054810), (95, 843848), (152, 527405), (190, 421924), (313, 256120), (337, 237880), (380, 210962), (626, 128060), (674, 118940), (760, 105481), (1252, 64030), (1348, 59470), (1565, 51224), (1685, 47576), (2504, 32015), (2696, 29735), (3130, 25612), (3370, 23788), (5947, 13480), (6260, 12806), (6403, 12520), (6740, 11894)]