1605015

素因数分解:

$3^5\times 5^1\times {\mathrm{1321}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 2887248

約数和(自身を除く): 1282233

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 1321, 3963, 6605, 11889, 19815, 35667, 59445, 107001, 178335, 321003, 535005, 1605015]

約数ペア:

[(1, 1605015), (3, 535005), (5, 321003), (9, 178335), (15, 107001), (27, 59445), (45, 35667), (81, 19815), (135, 11889), (243, 6605), (405, 3963), (1215, 1321)]