13252820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{523}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 32043648

約数和(自身を除く): 18790828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 523, 724, 905, 1046, 1267, 1810, 2092, 2534, 2615, 3620, 3661, 5068, 5230, 6335, 7322, 10460, 12670, 14644, 18305, 25340, 36610, 73220, 94663, 189326, 378652, 473315, 662641, 946630, 1325282, 1893260, 2650564, 3313205, 6626410, 13252820]

約数ペア:

[(1, 13252820), (2, 6626410), (4, 3313205), (5, 2650564), (7, 1893260), (10, 1325282), (14, 946630), (20, 662641), (28, 473315), (35, 378652), (70, 189326), (140, 94663), (181, 73220), (362, 36610), (523, 25340), (724, 18305), (905, 14644), (1046, 12670), (1267, 10460), (1810, 7322), (2092, 6335), (2534, 5230), (2615, 5068), (3620, 3661)]