20254360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72337}}^1$

素因数の和:72355

約数の個数: 32

約数和(自身を含む): 52083360

約数和(自身を除く): 31829000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72337, 144674, 289348, 361685, 506359, 578696, 723370, 1012718, 1446740, 2025436, 2531795, 2893480, 4050872, 5063590, 10127180, 20254360]

約数ペア:

[(1, 20254360), (2, 10127180), (4, 5063590), (5, 4050872), (7, 2893480), (8, 2531795), (10, 2025436), (14, 1446740), (20, 1012718), (28, 723370), (35, 578696), (40, 506359), (56, 361685), (70, 289348), (140, 144674), (280, 72337)]