209901295

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{52541}}^1$

素因数の和:52610

約数の個数: 16

約数和(自身を含む): 272377728

約数和(自身を除く): 62476433

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 52541, 262705, 893197, 2469427, 4465985, 12347135, 41980259, 209901295]

約数ペア:

[(1, 209901295), (5, 41980259), (17, 12347135), (47, 4465985), (85, 2469427), (235, 893197), (799, 262705), (3995, 52541)]