205122580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{788933}}^1$

素因数の和:788955

約数の個数: 24

約数和(自身を含む): 463893192

約数和(自身を除く): 258770612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 788933, 1577866, 3155732, 3944665, 7889330, 10256129, 15778660, 20512258, 41024516, 51280645, 102561290, 205122580]

約数ペア:

[(1, 205122580), (2, 102561290), (4, 51280645), (5, 41024516), (10, 20512258), (13, 15778660), (20, 10256129), (26, 7889330), (52, 3944665), (65, 3155732), (130, 1577866), (260, 788933)]