4990225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 6571008

約数和(自身を除く): 1580783

約数列:

[1, 5, 25, 31, 47, 137, 155, 235, 685, 775, 1175, 1457, 3425, 4247, 6439, 7285, 21235, 32195, 36425, 106175, 160975, 199609, 998045, 4990225]

約数ペア:

[(1, 4990225), (5, 998045), (25, 199609), (31, 160975), (47, 106175), (137, 36425), (155, 32195), (235, 21235), (685, 7285), (775, 6439), (1175, 4247), (1457, 3425)]