20481110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12119}}^1$

素因数の和:12152

約数の個数: 24

約数和(自身を含む): 39923280

約数和(自身を除く): 19442170

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12119, 24238, 60595, 121190, 157547, 315094, 787735, 1575470, 2048111, 4096222, 10240555, 20481110]

約数ペア:

[(1, 20481110), (2, 10240555), (5, 4096222), (10, 2048111), (13, 1575470), (26, 787735), (65, 315094), (130, 157547), (169, 121190), (338, 60595), (845, 24238), (1690, 12119)]