51445000

素因数分解:

$2^3\times 5^4\times {\mathrm{10289}}^1$

素因数の和:10315

約数の個数: 40

約数和(自身を含む): 120547350

約数和(自身を除く): 69102350

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 10289, 20578, 41156, 51445, 82312, 102890, 205780, 257225, 411560, 514450, 1028900, 1286125, 2057800, 2572250, 5144500, 6430625, 10289000, 12861250, 25722500, 51445000]

約数ペア:

[(1, 51445000), (2, 25722500), (4, 12861250), (5, 10289000), (8, 6430625), (10, 5144500), (20, 2572250), (25, 2057800), (40, 1286125), (50, 1028900), (100, 514450), (125, 411560), (200, 257225), (250, 205780), (500, 102890), (625, 82312), (1000, 51445), (1250, 41156), (2500, 20578), (5000, 10289)]