20488208

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7577}}^1$

素因数の和:7611

約数の個数: 30

約数和(自身を含む): 42989994

約数和(自身を除く): 22501786

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7577, 15154, 30308, 60616, 98501, 121232, 197002, 394004, 788008, 1280513, 1576016, 2561026, 5122052, 10244104, 20488208]

約数ペア:

[(1, 20488208), (2, 10244104), (4, 5122052), (8, 2561026), (13, 1576016), (16, 1280513), (26, 788008), (52, 394004), (104, 197002), (169, 121232), (208, 98501), (338, 60616), (676, 30308), (1352, 15154), (2704, 7577)]