19648390

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5051}}^1$

素因数の和:5447

約数の個数: 16

約数和(自身を含む): 35465040

約数和(自身を除く): 15816650

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 5051, 10102, 25255, 50510, 1964839, 3929678, 9824195, 19648390]

約数ペア:

[(1, 19648390), (2, 9824195), (5, 3929678), (10, 1964839), (389, 50510), (778, 25255), (1945, 10102), (3890, 5051)]