78969020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{303727}}^1$

素因数の和:303749

約数の個数: 24

約数和(自身を含む): 178592064

約数和(自身を除く): 99623044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 303727, 607454, 1214908, 1518635, 3037270, 3948451, 6074540, 7896902, 15793804, 19742255, 39484510, 78969020]

約数ペア:

[(1, 78969020), (2, 39484510), (4, 19742255), (5, 15793804), (10, 7896902), (13, 6074540), (20, 3948451), (26, 3037270), (52, 1518635), (65, 1214908), (130, 607454), (260, 303727)]