39820005

素因数分解:

$3^4\times 5^1\times {\mathrm{98321}}^1$

素因数の和:98338

約数の個数: 20

約数和(自身を含む): 71381772

約数和(自身を除く): 31561767

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 98321, 294963, 491605, 884889, 1474815, 2654667, 4424445, 7964001, 13273335, 39820005]

約数ペア:

[(1, 39820005), (3, 13273335), (5, 7964001), (9, 4424445), (15, 2654667), (27, 1474815), (45, 884889), (81, 491605), (135, 294963), (405, 98321)]