18952880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 47779680

約数和(自身を除く): 28826800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 37, 38, 40, 74, 76, 80, 95, 148, 152, 185, 190, 296, 304, 337, 370, 380, 592, 674, 703, 740, 760, 1348, 1406, 1480, 1520, 1685, 2696, 2812, 2960, 3370, 3515, 5392, 5624, 6403, 6740, 7030, 11248, 12469, 12806, 13480, 14060, 24938, 25612, 26960, 28120, 32015, 49876, 51224, 56240, 62345, 64030, 99752, 102448, 124690, 128060, 199504, 236911, 249380, 256120, 473822, 498760, 512240, 947644, 997520, 1184555, 1895288, 2369110, 3790576, 4738220, 9476440, 18952880]

約数ペア:

[(1, 18952880), (2, 9476440), (4, 4738220), (5, 3790576), (8, 2369110), (10, 1895288), (16, 1184555), (19, 997520), (20, 947644), (37, 512240), (38, 498760), (40, 473822), (74, 256120), (76, 249380), (80, 236911), (95, 199504), (148, 128060), (152, 124690), (185, 102448), (190, 99752), (296, 64030), (304, 62345), (337, 56240), (370, 51224), (380, 49876), (592, 32015), (674, 28120), (703, 26960), (740, 25612), (760, 24938), (1348, 14060), (1406, 13480), (1480, 12806), (1520, 12469), (1685, 11248), (2696, 7030), (2812, 6740), (2960, 6403), (3370, 5624), (3515, 5392)]