20512157876

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1861}}^1\times {\mathrm{4423}}^1$

素因数の和:6384

約数の個数: 48

約数和(自身を含む): 41516939520

約数和(自身を除く): 21004781644

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 1861, 2492, 3722, 4423, 7444, 8846, 13027, 17692, 26054, 30961, 52108, 61922, 123844, 165629, 331258, 393647, 662516, 787294, 1159403, 1574588, 2318806, 2755529, 4637612, 5511058, 8231203, 11022116, 16462406, 32924812, 57618421, 115236842, 230473684, 732577067, 1465154134, 2930308268, 5128039469, 10256078938, 20512157876]

約数ペア:

[(1, 20512157876), (2, 10256078938), (4, 5128039469), (7, 2930308268), (14, 1465154134), (28, 732577067), (89, 230473684), (178, 115236842), (356, 57618421), (623, 32924812), (1246, 16462406), (1861, 11022116), (2492, 8231203), (3722, 5511058), (4423, 4637612), (7444, 2755529), (8846, 2318806), (13027, 1574588), (17692, 1159403), (26054, 787294), (30961, 662516), (52108, 393647), (61922, 331258), (123844, 165629)]