20512897720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73260349}}^1$

素因数の和:73260367

約数の個数: 32

約数和(自身を含む): 52747452000

約数和(自身を除く): 32234554280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73260349, 146520698, 293041396, 366301745, 512822443, 586082792, 732603490, 1025644886, 1465206980, 2051289772, 2564112215, 2930413960, 4102579544, 5128224430, 10256448860, 20512897720]

約数ペア:

[(1, 20512897720), (2, 10256448860), (4, 5128224430), (5, 4102579544), (7, 2930413960), (8, 2564112215), (10, 2051289772), (14, 1465206980), (20, 1025644886), (28, 732603490), (35, 586082792), (40, 512822443), (56, 366301745), (70, 293041396), (140, 146520698), (280, 73260349)]