20870045

素因数分解:

$5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1487}}^1$

素因数の和:1900

約数の個数: 16

約数和(自身を含む): 28712448

約数和(自身を除く): 7842403

約数列:

[1, 5, 7, 35, 401, 1487, 2005, 2807, 7435, 10409, 14035, 52045, 596287, 2981435, 4174009, 20870045]

約数ペア:

[(1, 20870045), (5, 4174009), (7, 2981435), (35, 596287), (401, 52045), (1487, 14035), (2005, 10409), (2807, 7435)]