7989020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30727}}^1$

素因数の和:30749

約数の個数: 24

約数和(自身を含む): 18068064

約数和(自身を除く): 10079044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 30727, 61454, 122908, 153635, 307270, 399451, 614540, 798902, 1597804, 1997255, 3994510, 7989020]

約数ペア:

[(1, 7989020), (2, 3994510), (4, 1997255), (5, 1597804), (10, 798902), (13, 614540), (20, 399451), (26, 307270), (52, 153635), (65, 122908), (130, 61454), (260, 30727)]