20702977204

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{797}}^1\times {\mathrm{71363}}^1$

素因数の和:72184

約数の個数: 48

約数和(自身を含む): 44647602048

約数和(自身を除く): 23944624844

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 797, 1594, 3188, 5579, 10361, 11158, 20722, 22316, 41444, 71363, 72527, 142726, 145054, 285452, 290108, 499541, 927719, 999082, 1855438, 1998164, 3710876, 6494033, 12988066, 25976132, 56876311, 113752622, 227505244, 398134177, 739392043, 796268354, 1478784086, 1592536708, 2957568172, 5175744301, 10351488602, 20702977204]

約数ペア:

[(1, 20702977204), (2, 10351488602), (4, 5175744301), (7, 2957568172), (13, 1592536708), (14, 1478784086), (26, 796268354), (28, 739392043), (52, 398134177), (91, 227505244), (182, 113752622), (364, 56876311), (797, 25976132), (1594, 12988066), (3188, 6494033), (5579, 3710876), (10361, 1998164), (11158, 1855438), (20722, 999082), (22316, 927719), (41444, 499541), (71363, 290108), (72527, 285452), (142726, 145054)]