19950665

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1579}}^1$

素因数の和:1629

約数の個数: 24

約数和(自身を含む): 28895040

約数和(自身を除く): 8944375

約数列:

[1, 5, 7, 19, 35, 95, 133, 361, 665, 1579, 1805, 2527, 7895, 11053, 12635, 30001, 55265, 150005, 210007, 570019, 1050035, 2850095, 3990133, 19950665]

約数ペア:

[(1, 19950665), (5, 3990133), (7, 2850095), (19, 1050035), (35, 570019), (95, 210007), (133, 150005), (361, 55265), (665, 30001), (1579, 12635), (1805, 11053), (2527, 7895)]