28240145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{3733}}^1$

素因数の和:3844

約数の個数: 16

約数和(自身を含む): 36294480

約数和(自身を除く): 8054335

約数列:

[1, 5, 17, 85, 89, 445, 1513, 3733, 7565, 18665, 63461, 317305, 332237, 1661185, 5648029, 28240145]

約数ペア:

[(1, 28240145), (5, 5648029), (17, 1661185), (85, 332237), (89, 317305), (445, 63461), (1513, 18665), (3733, 7565)]