19803025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{673}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 27078624

約数和(自身を除く): 7275599

約数列:

[1, 5, 11, 25, 55, 107, 275, 535, 673, 1177, 2675, 3365, 5885, 7403, 16825, 29425, 37015, 72011, 185075, 360055, 792121, 1800275, 3960605, 19803025]

約数ペア:

[(1, 19803025), (5, 3960605), (11, 1800275), (25, 792121), (55, 360055), (107, 185075), (275, 72011), (535, 37015), (673, 29425), (1177, 16825), (2675, 7403), (3365, 5885)]