28913780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{206527}}^1$

素因数の和:206543

約数の個数: 24

約数和(自身を含む): 69393408

約数和(自身を除く): 40479628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 206527, 413054, 826108, 1032635, 1445689, 2065270, 2891378, 4130540, 5782756, 7228445, 14456890, 28913780]

約数ペア:

[(1, 28913780), (2, 14456890), (4, 7228445), (5, 5782756), (7, 4130540), (10, 2891378), (14, 2065270), (20, 1445689), (28, 1032635), (35, 826108), (70, 413054), (140, 206527)]