12901475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 17045040

約数和(自身を除く): 4143565

約数列:

[1, 5, 19, 25, 95, 157, 173, 475, 785, 865, 2983, 3287, 3925, 4325, 14915, 16435, 27161, 74575, 82175, 135805, 516059, 679025, 2580295, 12901475]

約数ペア:

[(1, 12901475), (5, 2580295), (19, 679025), (25, 516059), (95, 135805), (157, 82175), (173, 74575), (475, 27161), (785, 16435), (865, 14915), (2983, 4325), (3287, 3925)]