20421600

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:217

約数の個数: 144

約数和(自身を含む): 67995648

約数和(自身を除く): 47574048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 67, 75, 80, 96, 100, 120, 127, 134, 150, 160, 200, 201, 240, 254, 268, 300, 335, 381, 400, 402, 480, 508, 536, 600, 635, 670, 762, 800, 804, 1005, 1016, 1072, 1200, 1270, 1340, 1524, 1608, 1675, 1905, 2010, 2032, 2144, 2400, 2540, 2680, 3048, 3175, 3216, 3350, 3810, 4020, 4064, 5025, 5080, 5360, 6096, 6350, 6432, 6700, 7620, 8040, 8509, 9525, 10050, 10160, 10720, 12192, 12700, 13400, 15240, 16080, 17018, 19050, 20100, 20320, 25400, 25527, 26800, 30480, 32160, 34036, 38100, 40200, 42545, 50800, 51054, 53600, 60960, 68072, 76200, 80400, 85090, 101600, 102108, 127635, 136144, 152400, 160800, 170180, 204216, 212725, 255270, 272288, 304800, 340360, 408432, 425450, 510540, 638175, 680720, 816864, 850900, 1021080, 1276350, 1361440, 1701800, 2042160, 2552700, 3403600, 4084320, 5105400, 6807200, 10210800, 20421600]

約数ペア:

[(1, 20421600), (2, 10210800), (3, 6807200), (4, 5105400), (5, 4084320), (6, 3403600), (8, 2552700), (10, 2042160), (12, 1701800), (15, 1361440), (16, 1276350), (20, 1021080), (24, 850900), (25, 816864), (30, 680720), (32, 638175), (40, 510540), (48, 425450), (50, 408432), (60, 340360), (67, 304800), (75, 272288), (80, 255270), (96, 212725), (100, 204216), (120, 170180), (127, 160800), (134, 152400), (150, 136144), (160, 127635), (200, 102108), (201, 101600), (240, 85090), (254, 80400), (268, 76200), (300, 68072), (335, 60960), (381, 53600), (400, 51054), (402, 50800), (480, 42545), (508, 40200), (536, 38100), (600, 34036), (635, 32160), (670, 30480), (762, 26800), (800, 25527), (804, 25400), (1005, 20320), (1016, 20100), (1072, 19050), (1200, 17018), (1270, 16080), (1340, 15240), (1524, 13400), (1608, 12700), (1675, 12192), (1905, 10720), (2010, 10160), (2032, 10050), (2144, 9525), (2400, 8509), (2540, 8040), (2680, 7620), (3048, 6700), (3175, 6432), (3216, 6350), (3350, 6096), (3810, 5360), (4020, 5080), (4064, 5025)]