20956880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37423}}^1$

素因数の和:37443

約数の個数: 40

約数和(自身を含む): 55686912

約数和(自身を除く): 34730032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37423, 74846, 149692, 187115, 261961, 299384, 374230, 523922, 598768, 748460, 1047844, 1309805, 1496920, 2095688, 2619610, 2993840, 4191376, 5239220, 10478440, 20956880]

約数ペア:

[(1, 20956880), (2, 10478440), (4, 5239220), (5, 4191376), (7, 2993840), (8, 2619610), (10, 2095688), (14, 1496920), (16, 1309805), (20, 1047844), (28, 748460), (35, 598768), (40, 523922), (56, 374230), (70, 299384), (80, 261961), (112, 187115), (140, 149692), (280, 74846), (560, 37423)]