128216085

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1601}}^1$

素因数の和:1909

約数の個数: 32

約数和(自身を含む): 216846720

約数和(自身を除く): 88630635

約数列:

[1, 3, 5, 15, 19, 57, 95, 281, 285, 843, 1405, 1601, 4215, 4803, 5339, 8005, 16017, 24015, 26695, 30419, 80085, 91257, 152095, 449881, 456285, 1349643, 2249405, 6748215, 8547739, 25643217, 42738695, 128216085]

約数ペア:

[(1, 128216085), (3, 42738695), (5, 25643217), (15, 8547739), (19, 6748215), (57, 2249405), (95, 1349643), (281, 456285), (285, 449881), (843, 152095), (1405, 91257), (1601, 80085), (4215, 30419), (4803, 26695), (5339, 24015), (8005, 16017)]