64009520

素因数分解:

$2^4\times 5^1\times {\mathrm{800119}}^1$

素因数の和:800132

約数の個数: 20

約数和(自身を含む): 148822320

約数和(自身を除く): 84812800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800119, 1600238, 3200476, 4000595, 6400952, 8001190, 12801904, 16002380, 32004760, 64009520]

約数ペア:

[(1, 64009520), (2, 32004760), (4, 16002380), (5, 12801904), (8, 8001190), (10, 6400952), (16, 4000595), (20, 3200476), (40, 1600238), (80, 800119)]