215779538

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{47}}^2$

素因数の和:156

約数の個数: 54

約数和(自身を含む): 380401551

約数和(自身を除く): 164622013

約数列:

[1, 2, 13, 17, 26, 34, 47, 94, 169, 221, 289, 338, 442, 578, 611, 799, 1222, 1598, 2209, 2873, 3757, 4418, 5746, 7514, 7943, 10387, 13583, 15886, 20774, 27166, 28717, 37553, 48841, 57434, 75106, 97682, 135031, 176579, 270062, 353158, 373321, 488189, 638401, 746642, 976378, 1276802, 2295527, 4591054, 6346457, 8299213, 12692914, 16598426, 107889769, 215779538]

約数ペア:

[(1, 215779538), (2, 107889769), (13, 16598426), (17, 12692914), (26, 8299213), (34, 6346457), (47, 4591054), (94, 2295527), (169, 1276802), (221, 976378), (289, 746642), (338, 638401), (442, 488189), (578, 373321), (611, 353158), (799, 270062), (1222, 176579), (1598, 135031), (2209, 97682), (2873, 75106), (3757, 57434), (4418, 48841), (5746, 37553), (7514, 28717), (7943, 27166), (10387, 20774), (13583, 15886)]