3962800

素因数分解:

$2^4\times 5^2\times {\mathrm{9907}}^1$

素因数の和:9925

約数の個数: 30

約数和(自身を含む): 9521588

約数和(自身を除く): 5558788

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 9907, 19814, 39628, 49535, 79256, 99070, 158512, 198140, 247675, 396280, 495350, 792560, 990700, 1981400, 3962800]

約数ペア:

[(1, 3962800), (2, 1981400), (4, 990700), (5, 792560), (8, 495350), (10, 396280), (16, 247675), (20, 198140), (25, 158512), (40, 99070), (50, 79256), (80, 49535), (100, 39628), (200, 19814), (400, 9907)]