8145020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31327}}^1$

素因数の和:31349

約数の個数: 24

約数和(自身を含む): 18420864

約数和(自身を除く): 10275844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31327, 62654, 125308, 156635, 313270, 407251, 626540, 814502, 1629004, 2036255, 4072510, 8145020]

約数ペア:

[(1, 8145020), (2, 4072510), (4, 2036255), (5, 1629004), (10, 814502), (13, 626540), (20, 407251), (26, 313270), (52, 156635), (65, 125308), (130, 62654), (260, 31327)]