778487920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1390157}}^1$

素因数の和:1390177

約数の個数: 40

約数和(自身を含む): 2068555104

約数和(自身を除く): 1290067184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1390157, 2780314, 5560628, 6950785, 9731099, 11121256, 13901570, 19462198, 22242512, 27803140, 38924396, 48655495, 55606280, 77848792, 97310990, 111212560, 155697584, 194621980, 389243960, 778487920]

約数ペア:

[(1, 778487920), (2, 389243960), (4, 194621980), (5, 155697584), (7, 111212560), (8, 97310990), (10, 77848792), (14, 55606280), (16, 48655495), (20, 38924396), (28, 27803140), (35, 22242512), (40, 19462198), (56, 13901570), (70, 11121256), (80, 9731099), (112, 6950785), (140, 5560628), (280, 2780314), (560, 1390157)]