28028140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{200201}}^1$

素因数の和:200217

約数の個数: 24

約数和(自身を含む): 67267872

約数和(自身を除く): 39239732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 200201, 400402, 800804, 1001005, 1401407, 2002010, 2802814, 4004020, 5605628, 7007035, 14014070, 28028140]

約数ペア:

[(1, 28028140), (2, 14014070), (4, 7007035), (5, 5605628), (7, 4004020), (10, 2802814), (14, 2002010), (20, 1401407), (28, 1001005), (35, 800804), (70, 400402), (140, 200201)]