18080505

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5659}}^1$

素因数の和:5741

約数の個数: 24

約数和(自身を含む): 31786560

約数和(自身を除く): 13706055

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 5659, 16977, 28295, 50931, 84885, 254655, 401789, 1205367, 2008945, 3616101, 6026835, 18080505]

約数ペア:

[(1, 18080505), (3, 6026835), (5, 3616101), (9, 2008945), (15, 1205367), (45, 401789), (71, 254655), (213, 84885), (355, 50931), (639, 28295), (1065, 16977), (3195, 5659)]