20291012

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 43760640

約数和(自身を除く): 23469628

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 817, 887, 1204, 1634, 1774, 3268, 3548, 5719, 6209, 11438, 12418, 16853, 22876, 24836, 33706, 38141, 67412, 76282, 117971, 152564, 235942, 266987, 471884, 533974, 724679, 1067948, 1449358, 2898716, 5072753, 10145506, 20291012]

約数ペア:

[(1, 20291012), (2, 10145506), (4, 5072753), (7, 2898716), (14, 1449358), (19, 1067948), (28, 724679), (38, 533974), (43, 471884), (76, 266987), (86, 235942), (133, 152564), (172, 117971), (266, 76282), (301, 67412), (532, 38141), (602, 33706), (817, 24836), (887, 22876), (1204, 16853), (1634, 12418), (1774, 11438), (3268, 6209), (3548, 5719)]