66810015

素因数分解:

$3^4\times 5^1\times {\mathrm{164963}}^1$

素因数の和:164980

約数の個数: 20

約数和(自身を含む): 119763864

約数和(自身を除く): 52953849

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 164963, 494889, 824815, 1484667, 2474445, 4454001, 7423335, 13362003, 22270005, 66810015]

約数ペア:

[(1, 66810015), (3, 22270005), (5, 13362003), (9, 7423335), (15, 4454001), (27, 2474445), (45, 1484667), (81, 824815), (135, 494889), (405, 164963)]