20556830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7937}}^1$

素因数の和:7988

約数の個数: 32

約数和(自身を含む): 43436736

約数和(自身を除く): 22879906

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 185, 259, 370, 518, 1295, 2590, 7937, 15874, 39685, 55559, 79370, 111118, 277795, 293669, 555590, 587338, 1468345, 2055683, 2936690, 4111366, 10278415, 20556830]

約数ペア:

[(1, 20556830), (2, 10278415), (5, 4111366), (7, 2936690), (10, 2055683), (14, 1468345), (35, 587338), (37, 555590), (70, 293669), (74, 277795), (185, 111118), (259, 79370), (370, 55559), (518, 39685), (1295, 15874), (2590, 7937)]