201990105

素因数分解:

$3^5\times 5^1\times {\mathrm{166247}}^1$

素因数の和:166267

約数の個数: 24

約数和(自身を含む): 363085632

約数和(自身を除く): 161095527

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 166247, 498741, 831235, 1496223, 2493705, 4488669, 7481115, 13466007, 22443345, 40398021, 67330035, 201990105]

約数ペア:

[(1, 201990105), (3, 67330035), (5, 40398021), (9, 22443345), (15, 13466007), (27, 7481115), (45, 4488669), (81, 2493705), (135, 1496223), (243, 831235), (405, 498741), (1215, 166247)]