19948065875

素因数分解:

$5^3\times {\mathrm{389}}^1\times {\mathrm{410243}}^1$

素因数の和:410647

約数の個数: 16

約数和(自身を含む): 24959244960

約数和(自身を除く): 5011179085

約数列:

[1, 5, 25, 125, 389, 1945, 9725, 48625, 410243, 2051215, 10256075, 51280375, 159584527, 797922635, 3989613175, 19948065875]

約数ペア:

[(1, 19948065875), (5, 3989613175), (25, 797922635), (125, 159584527), (389, 51280375), (1945, 10256075), (9725, 2051215), (48625, 410243)]