20641569305

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{288109}}^1$

素因数の和:288233

約数の個数: 32

約数和(自身を含む): 29871244800

約数和(自身を除く): 9229675495

約数列:

[1, 5, 7, 23, 35, 89, 115, 161, 445, 623, 805, 2047, 3115, 10235, 14329, 71645, 288109, 1440545, 2016763, 6626507, 10083815, 25641701, 33132535, 46385549, 128208505, 179491907, 231927745, 589759123, 897459535, 2948795615, 4128313861, 20641569305]

約数ペア:

[(1, 20641569305), (5, 4128313861), (7, 2948795615), (23, 897459535), (35, 589759123), (89, 231927745), (115, 179491907), (161, 128208505), (445, 46385549), (623, 33132535), (805, 25641701), (2047, 10083815), (3115, 6626507), (10235, 2016763), (14329, 1440545), (71645, 288109)]