1212011505

素因数分解:

$3^4\times 5^1\times {\mathrm{2992621}}^1$

素因数の和:2992638

約数の個数: 20

約数和(自身を含む): 2172643572

約数和(自身を除く): 960632067

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2992621, 8977863, 14963105, 26933589, 44889315, 80800767, 134667945, 242402301, 404003835, 1212011505]

約数ペア:

[(1, 1212011505), (3, 404003835), (5, 242402301), (9, 134667945), (15, 80800767), (27, 44889315), (45, 26933589), (81, 14963105), (135, 8977863), (405, 2992621)]