128362815

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{407501}}^1$

素因数の和:407519

約数の個数: 24

約数和(自身を含む): 254281248

約数和(自身を除く): 125918433

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 407501, 1222503, 2037505, 2852507, 3667509, 6112515, 8557521, 14262535, 18337545, 25672563, 42787605, 128362815]

約数ペア:

[(1, 128362815), (3, 42787605), (5, 25672563), (7, 18337545), (9, 14262535), (15, 8557521), (21, 6112515), (35, 3667509), (45, 2852507), (63, 2037505), (105, 1222503), (315, 407501)]