428000

素因数分解:

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

素因数の和:132

約数の個数: 48

約数和(自身を含む): 1061424

約数和(自身を除く): 633424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 107, 125, 160, 200, 214, 250, 400, 428, 500, 535, 800, 856, 1000, 1070, 1712, 2000, 2140, 2675, 3424, 4000, 4280, 5350, 8560, 10700, 13375, 17120, 21400, 26750, 42800, 53500, 85600, 107000, 214000, 428000]

約数ペア:

[(1, 428000), (2, 214000), (4, 107000), (5, 85600), (8, 53500), (10, 42800), (16, 26750), (20, 21400), (25, 17120), (32, 13375), (40, 10700), (50, 8560), (80, 5350), (100, 4280), (107, 4000), (125, 3424), (160, 2675), (200, 2140), (214, 2000), (250, 1712), (400, 1070), (428, 1000), (500, 856), (535, 800)]