7970805

素因数分解:

$3^4\times 5^1\times {\mathrm{19681}}^1$

素因数の和:19698

約数の個数: 20

約数和(自身を含む): 14289132

約数和(自身を除く): 6318327

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 19681, 59043, 98405, 177129, 295215, 531387, 885645, 1594161, 2656935, 7970805]

約数ペア:

[(1, 7970805), (3, 2656935), (5, 1594161), (9, 885645), (15, 531387), (27, 295215), (45, 177129), (81, 98405), (135, 59043), (405, 19681)]