161998000

素因数分解:

$2^4\times 5^3\times {\mathrm{107}}^1\times {\mathrm{757}}^1$

素因数の和:887

約数の個数: 80

約数和(自身を含む): 395894304

約数和(自身を除く): 233896304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 107, 125, 200, 214, 250, 400, 428, 500, 535, 757, 856, 1000, 1070, 1514, 1712, 2000, 2140, 2675, 3028, 3785, 4280, 5350, 6056, 7570, 8560, 10700, 12112, 13375, 15140, 18925, 21400, 26750, 30280, 37850, 42800, 53500, 60560, 75700, 80999, 94625, 107000, 151400, 161998, 189250, 214000, 302800, 323996, 378500, 404995, 647992, 757000, 809990, 1295984, 1514000, 1619980, 2024975, 3239960, 4049950, 6479920, 8099900, 10124875, 16199800, 20249750, 32399600, 40499500, 80999000, 161998000]

約数ペア:

[(1, 161998000), (2, 80999000), (4, 40499500), (5, 32399600), (8, 20249750), (10, 16199800), (16, 10124875), (20, 8099900), (25, 6479920), (40, 4049950), (50, 3239960), (80, 2024975), (100, 1619980), (107, 1514000), (125, 1295984), (200, 809990), (214, 757000), (250, 647992), (400, 404995), (428, 378500), (500, 323996), (535, 302800), (757, 214000), (856, 189250), (1000, 161998), (1070, 151400), (1514, 107000), (1712, 94625), (2000, 80999), (2140, 75700), (2675, 60560), (3028, 53500), (3785, 42800), (4280, 37850), (5350, 30280), (6056, 26750), (7570, 21400), (8560, 18925), (10700, 15140), (12112, 13375)]