20280730064

素因数分解:

$2^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{653711}}^1$

素因数の和:654003

約数の個数: 40

約数和(自身を含む): 45069520128

約数和(自身を除く): 24788790064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 277, 554, 1108, 1939, 2216, 3878, 4432, 7756, 15512, 31024, 653711, 1307422, 2614844, 4575977, 5229688, 9151954, 10459376, 18303908, 36607816, 73215632, 181077947, 362155894, 724311788, 1267545629, 1448623576, 2535091258, 2897247152, 5070182516, 10140365032, 20280730064]

約数ペア:

[(1, 20280730064), (2, 10140365032), (4, 5070182516), (7, 2897247152), (8, 2535091258), (14, 1448623576), (16, 1267545629), (28, 724311788), (56, 362155894), (112, 181077947), (277, 73215632), (554, 36607816), (1108, 18303908), (1939, 10459376), (2216, 9151954), (3878, 5229688), (4432, 4575977), (7756, 2614844), (15512, 1307422), (31024, 653711)]