20618360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73637}}^1$

素因数の和:73655

約数の個数: 32

約数和(自身を含む): 53019360

約数和(自身を除く): 32401000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73637, 147274, 294548, 368185, 515459, 589096, 736370, 1030918, 1472740, 2061836, 2577295, 2945480, 4123672, 5154590, 10309180, 20618360]

約数ペア:

[(1, 20618360), (2, 10309180), (4, 5154590), (5, 4123672), (7, 2945480), (8, 2577295), (10, 2061836), (14, 1472740), (20, 1030918), (28, 736370), (35, 589096), (40, 515459), (56, 368185), (70, 294548), (140, 147274), (280, 73637)]