40498000

素因数分解:

$2^4\times 5^3\times {\mathrm{20249}}^1$

素因数の和:20272

約数の個数: 40

約数和(自身を含む): 97929000

約数和(自身を除く): 57431000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 20249, 40498, 80996, 101245, 161992, 202490, 323984, 404980, 506225, 809960, 1012450, 1619920, 2024900, 2531125, 4049800, 5062250, 8099600, 10124500, 20249000, 40498000]

約数ペア:

[(1, 40498000), (2, 20249000), (4, 10124500), (5, 8099600), (8, 5062250), (10, 4049800), (16, 2531125), (20, 2024900), (25, 1619920), (40, 1012450), (50, 809960), (80, 506225), (100, 404980), (125, 323984), (200, 202490), (250, 161992), (400, 101245), (500, 80996), (1000, 40498), (2000, 20249)]