25137905

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 33203520

約数和(自身を除く): 8065615

約数列:

[1, 5, 13, 65, 71, 169, 355, 419, 845, 923, 2095, 4615, 5447, 11999, 27235, 29749, 59995, 70811, 148745, 354055, 386737, 1933685, 5027581, 25137905]

約数ペア:

[(1, 25137905), (5, 5027581), (13, 1933685), (65, 386737), (71, 354055), (169, 148745), (355, 70811), (419, 59995), (845, 29749), (923, 27235), (2095, 11999), (4615, 5447)]