28982000

素因数分解:

$2^4\times 5^3\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:403

約数の個数: 80

約数和(自身を含む): 71920992

約数和(自身を除く): 42938992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 125, 172, 200, 215, 250, 337, 344, 400, 430, 500, 674, 688, 860, 1000, 1075, 1348, 1685, 1720, 2000, 2150, 2696, 3370, 3440, 4300, 5375, 5392, 6740, 8425, 8600, 10750, 13480, 14491, 16850, 17200, 21500, 26960, 28982, 33700, 42125, 43000, 57964, 67400, 72455, 84250, 86000, 115928, 134800, 144910, 168500, 231856, 289820, 337000, 362275, 579640, 674000, 724550, 1159280, 1449100, 1811375, 2898200, 3622750, 5796400, 7245500, 14491000, 28982000]

約数ペア:

[(1, 28982000), (2, 14491000), (4, 7245500), (5, 5796400), (8, 3622750), (10, 2898200), (16, 1811375), (20, 1449100), (25, 1159280), (40, 724550), (43, 674000), (50, 579640), (80, 362275), (86, 337000), (100, 289820), (125, 231856), (172, 168500), (200, 144910), (215, 134800), (250, 115928), (337, 86000), (344, 84250), (400, 72455), (430, 67400), (500, 57964), (674, 43000), (688, 42125), (860, 33700), (1000, 28982), (1075, 26960), (1348, 21500), (1685, 17200), (1720, 16850), (2000, 14491), (2150, 13480), (2696, 10750), (3370, 8600), (3440, 8425), (4300, 6740), (5375, 5392)]