215916475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{1811}}^1$

素因数の和:2091

約数の個数: 24

約数和(自身を含む): 283106880

約数和(自身を除く): 67190405

約数列:

[1, 5, 19, 25, 95, 251, 475, 1255, 1811, 4769, 6275, 9055, 23845, 34409, 45275, 119225, 172045, 454561, 860225, 2272805, 8636659, 11364025, 43183295, 215916475]

約数ペア:

[(1, 215916475), (5, 43183295), (19, 11364025), (25, 8636659), (95, 2272805), (251, 860225), (475, 454561), (1255, 172045), (1811, 119225), (4769, 45275), (6275, 34409), (9055, 23845)]