20020990015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18118543}}^1$

素因数の和:18118578

約数の個数: 16

約数和(自身を含む): 27395238528

約数和(自身を除く): 7374248513

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18118543, 90592715, 235541059, 308015231, 1177705295, 1540076155, 4004198003, 20020990015]

約数ペア:

[(1, 20020990015), (5, 4004198003), (13, 1540076155), (17, 1177705295), (65, 308015231), (85, 235541059), (221, 90592715), (1105, 18118543)]