390015

素因数分解:

$3^6\times 5^1\times {\mathrm{107}}^1$

素因数の和:130

約数の個数: 28

約数和(自身を含む): 708264

約数和(自身を除く): 318249

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 107, 135, 243, 321, 405, 535, 729, 963, 1215, 1605, 2889, 3645, 4815, 8667, 14445, 26001, 43335, 78003, 130005, 390015]

約数ペア:

[(1, 390015), (3, 130005), (5, 78003), (9, 43335), (15, 26001), (27, 14445), (45, 8667), (81, 4815), (107, 3645), (135, 2889), (243, 1605), (321, 1215), (405, 963), (535, 729)]