12312020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{87943}}^1$

素因数の和:87959

約数の個数: 24

約数和(自身を含む): 29549184

約数和(自身を除く): 17237164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 87943, 175886, 351772, 439715, 615601, 879430, 1231202, 1758860, 2462404, 3078005, 6156010, 12312020]

約数ペア:

[(1, 12312020), (2, 6156010), (4, 3078005), (5, 2462404), (7, 1758860), (10, 1231202), (14, 879430), (20, 615601), (28, 439715), (35, 351772), (70, 175886), (140, 87943)]