81719665

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{2053}}^1$

素因数の和:2496

約数の個数: 16

約数和(自身を含む): 103521600

約数和(自身を除く): 21801935

約数列:

[1, 5, 19, 95, 419, 2053, 2095, 7961, 10265, 39007, 39805, 195035, 860207, 4301035, 16343933, 81719665]

約数ペア:

[(1, 81719665), (5, 16343933), (19, 4301035), (95, 860207), (419, 195035), (2053, 39805), (2095, 39007), (7961, 10265)]