205124800

素因数分解:

$2^6\times 5^2\times {\mathrm{128203}}^1$

素因数の和:128225

約数の個数: 42

約数和(自身を含む): 504739148

約数和(自身を除く): 299614348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 128203, 256406, 512812, 641015, 1025624, 1282030, 2051248, 2564060, 3205075, 4102496, 5128120, 6410150, 8204992, 10256240, 12820300, 20512480, 25640600, 41024960, 51281200, 102562400, 205124800]

約数ペア:

[(1, 205124800), (2, 102562400), (4, 51281200), (5, 41024960), (8, 25640600), (10, 20512480), (16, 12820300), (20, 10256240), (25, 8204992), (32, 6410150), (40, 5128120), (50, 4102496), (64, 3205075), (80, 2564060), (100, 2051248), (160, 1282030), (200, 1025624), (320, 641015), (400, 512812), (800, 256406), (1600, 128203)]