28386325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{947}}^1$

素因数の和:1077

約数の個数: 24

約数和(自身を含む): 38792160

約数和(自身を除く): 10405835

約数列:

[1, 5, 11, 25, 55, 109, 275, 545, 947, 1199, 2725, 4735, 5995, 10417, 23675, 29975, 52085, 103223, 260425, 516115, 1135453, 2580575, 5677265, 28386325]

約数ペア:

[(1, 28386325), (5, 5677265), (11, 2580575), (25, 1135453), (55, 516115), (109, 260425), (275, 103223), (545, 52085), (947, 29975), (1199, 23675), (2725, 10417), (4735, 5995)]