16261640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3947}}^1$

素因数の和:4061

約数の個数: 32

約数和(自身を含む): 36953280

約数和(自身を除く): 20691640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 3947, 4120, 7894, 15788, 19735, 31576, 39470, 78940, 157880, 406541, 813082, 1626164, 2032705, 3252328, 4065410, 8130820, 16261640]

約数ペア:

[(1, 16261640), (2, 8130820), (4, 4065410), (5, 3252328), (8, 2032705), (10, 1626164), (20, 813082), (40, 406541), (103, 157880), (206, 78940), (412, 39470), (515, 31576), (824, 19735), (1030, 15788), (2060, 7894), (3947, 4120)]