54391000

素因数分解:

$2^3\times 5^3\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 128700000

約数和(自身を除く): 74309000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 125, 200, 218, 250, 436, 499, 500, 545, 872, 998, 1000, 1090, 1996, 2180, 2495, 2725, 3992, 4360, 4990, 5450, 9980, 10900, 12475, 13625, 19960, 21800, 24950, 27250, 49900, 54391, 54500, 62375, 99800, 108782, 109000, 124750, 217564, 249500, 271955, 435128, 499000, 543910, 1087820, 1359775, 2175640, 2719550, 5439100, 6798875, 10878200, 13597750, 27195500, 54391000]

約数ペア:

[(1, 54391000), (2, 27195500), (4, 13597750), (5, 10878200), (8, 6798875), (10, 5439100), (20, 2719550), (25, 2175640), (40, 1359775), (50, 1087820), (100, 543910), (109, 499000), (125, 435128), (200, 271955), (218, 249500), (250, 217564), (436, 124750), (499, 109000), (500, 108782), (545, 99800), (872, 62375), (998, 54500), (1000, 54391), (1090, 49900), (1996, 27250), (2180, 24950), (2495, 21800), (2725, 19960), (3992, 13625), (4360, 12475), (4990, 10900), (5450, 9980)]