20660775

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{3319}}^1$

素因数の和:3415

約数の個数: 24

約数和(自身を含む): 34581120

約数和(自身を除く): 13920345

約数列:

[1, 3, 5, 15, 25, 75, 83, 249, 415, 1245, 2075, 3319, 6225, 9957, 16595, 49785, 82975, 248925, 275477, 826431, 1377385, 4132155, 6886925, 20660775]

約数ペア:

[(1, 20660775), (3, 6886925), (5, 4132155), (15, 1377385), (25, 826431), (75, 275477), (83, 248925), (249, 82975), (415, 49785), (1245, 16595), (2075, 9957), (3319, 6225)]