28209860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{201499}}^1$

素因数の和:201515

約数の個数: 24

約数和(自身を含む): 67704000

約数和(自身を除く): 39494140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 201499, 402998, 805996, 1007495, 1410493, 2014990, 2820986, 4029980, 5641972, 7052465, 14104930, 28209860]

約数ペア:

[(1, 28209860), (2, 14104930), (4, 7052465), (5, 5641972), (7, 4029980), (10, 2820986), (14, 2014990), (20, 1410493), (28, 1007495), (35, 805996), (70, 402998), (140, 201499)]