20660525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 27379944

約数和(自身を除く): 6719419

約数列:

[1, 5, 17, 25, 85, 173, 281, 425, 865, 1405, 2941, 4325, 4777, 7025, 14705, 23885, 48613, 73525, 119425, 243065, 826421, 1215325, 4132105, 20660525]

約数ペア:

[(1, 20660525), (5, 4132105), (17, 1215325), (25, 826421), (85, 243065), (173, 119425), (281, 73525), (425, 48613), (865, 23885), (1405, 14705), (2941, 7025), (4325, 4777)]