201920660

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{15461}}^1$

素因数の和:16123

約数の個数: 24

約数和(自身を含む): 424710216

約数和(自身を除く): 222789556

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 6530, 13060, 15461, 30922, 61844, 77305, 154610, 309220, 10096033, 20192066, 40384132, 50480165, 100960330, 201920660]

約数ペア:

[(1, 201920660), (2, 100960330), (4, 50480165), (5, 40384132), (10, 20192066), (20, 10096033), (653, 309220), (1306, 154610), (2612, 77305), (3265, 61844), (6530, 30922), (13060, 15461)]