20312420

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1487}}^1$

素因数の和:2179

約数の個数: 24

約数和(自身を含む): 42747264

約数和(自身を除く): 22434844

約数列:

[1, 2, 4, 5, 10, 20, 683, 1366, 1487, 2732, 2974, 3415, 5948, 6830, 7435, 13660, 14870, 29740, 1015621, 2031242, 4062484, 5078105, 10156210, 20312420]

約数ペア:

[(1, 20312420), (2, 10156210), (4, 5078105), (5, 4062484), (10, 2031242), (20, 1015621), (683, 29740), (1366, 14870), (1487, 13660), (2732, 7435), (2974, 6830), (3415, 5948)]