20489600

素因数分解:

$2^7\times 5^2\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 53437800

約数和(自身を除く): 32948200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 128, 152, 160, 190, 200, 304, 320, 337, 380, 400, 475, 608, 640, 674, 760, 800, 950, 1216, 1348, 1520, 1600, 1685, 1900, 2432, 2696, 3040, 3200, 3370, 3800, 5392, 6080, 6403, 6740, 7600, 8425, 10784, 12160, 12806, 13480, 15200, 16850, 21568, 25612, 26960, 30400, 32015, 33700, 43136, 51224, 53920, 60800, 64030, 67400, 102448, 107840, 128060, 134800, 160075, 204896, 215680, 256120, 269600, 320150, 409792, 512240, 539200, 640300, 819584, 1024480, 1078400, 1280600, 2048960, 2561200, 4097920, 5122400, 10244800, 20489600]

約数ペア:

[(1, 20489600), (2, 10244800), (4, 5122400), (5, 4097920), (8, 2561200), (10, 2048960), (16, 1280600), (19, 1078400), (20, 1024480), (25, 819584), (32, 640300), (38, 539200), (40, 512240), (50, 409792), (64, 320150), (76, 269600), (80, 256120), (95, 215680), (100, 204896), (128, 160075), (152, 134800), (160, 128060), (190, 107840), (200, 102448), (304, 67400), (320, 64030), (337, 60800), (380, 53920), (400, 51224), (475, 43136), (608, 33700), (640, 32015), (674, 30400), (760, 26960), (800, 25612), (950, 21568), (1216, 16850), (1348, 15200), (1520, 13480), (1600, 12806), (1685, 12160), (1900, 10784), (2432, 8425), (2696, 7600), (3040, 6740), (3200, 6403), (3370, 6080), (3800, 5392)]