78942040

素因数分解:

$2^3\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{1627}}^1$

素因数の和:2851

約数の個数: 32

約数和(自身を含む): 177875280

約数和(自身を除く): 98933240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1213, 1627, 2426, 3254, 4852, 6065, 6508, 8135, 9704, 12130, 13016, 16270, 24260, 32540, 48520, 65080, 1973551, 3947102, 7894204, 9867755, 15788408, 19735510, 39471020, 78942040]

約数ペア:

[(1, 78942040), (2, 39471020), (4, 19735510), (5, 15788408), (8, 9867755), (10, 7894204), (20, 3947102), (40, 1973551), (1213, 65080), (1627, 48520), (2426, 32540), (3254, 24260), (4852, 16270), (6065, 13016), (6508, 12130), (8135, 9704)]