18912850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 38810016

約数和(自身を除く): 19897166

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 137, 251, 274, 275, 502, 550, 685, 1255, 1370, 1507, 2510, 2761, 3014, 3425, 5522, 6275, 6850, 7535, 12550, 13805, 15070, 27610, 34387, 37675, 68774, 69025, 75350, 138050, 171935, 343870, 378257, 756514, 859675, 1719350, 1891285, 3782570, 9456425, 18912850]

約数ペア:

[(1, 18912850), (2, 9456425), (5, 3782570), (10, 1891285), (11, 1719350), (22, 859675), (25, 756514), (50, 378257), (55, 343870), (110, 171935), (137, 138050), (251, 75350), (274, 69025), (275, 68774), (502, 37675), (550, 34387), (685, 27610), (1255, 15070), (1370, 13805), (1507, 12550), (2510, 7535), (2761, 6850), (3014, 6275), (3425, 5522)]