2080804545

素因数分解:

$3^4\times 5^1\times {\mathrm{5137789}}^1$

素因数の和:5137806

約数の個数: 20

約数和(自身を含む): 3730035540

約数和(自身を除く): 1649230995

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5137789, 15413367, 25688945, 46240101, 77066835, 138720303, 231200505, 416160909, 693601515, 2080804545]

約数ペア:

[(1, 2080804545), (3, 693601515), (5, 416160909), (9, 231200505), (15, 138720303), (27, 77066835), (45, 46240101), (81, 25688945), (135, 15413367), (405, 5137789)]