19569860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 23008060

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 109, 188, 191, 218, 235, 382, 436, 470, 545, 764, 940, 955, 1090, 1910, 2180, 3820, 5123, 8977, 10246, 17954, 20492, 20819, 25615, 35908, 41638, 44885, 51230, 83276, 89770, 102460, 104095, 179540, 208190, 416380, 978493, 1956986, 3913972, 4892465, 9784930, 19569860]

約数ペア:

[(1, 19569860), (2, 9784930), (4, 4892465), (5, 3913972), (10, 1956986), (20, 978493), (47, 416380), (94, 208190), (109, 179540), (188, 104095), (191, 102460), (218, 89770), (235, 83276), (382, 51230), (436, 44885), (470, 41638), (545, 35908), (764, 25615), (940, 20819), (955, 20492), (1090, 17954), (1910, 10246), (2180, 8977), (3820, 5123)]