20178745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{5051}}^1$

素因数の和:5120

約数の個数: 16

約数和(自身を含む): 26189568

約数和(自身を除く): 6010823

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 5051, 25255, 85867, 237397, 429335, 1186985, 4035749, 20178745]

約数ペア:

[(1, 20178745), (5, 4035749), (17, 1186985), (47, 429335), (85, 237397), (235, 85867), (799, 25255), (3995, 5051)]