128891178

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{32401}}^1$

素因数の和:32439

約数の個数: 48

約数和(自身を含む): 318446856

約数和(自身を除く): 189555678

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 32401, 64802, 97203, 194406, 291609, 421213, 550817, 583218, 842426, 1101634, 1263639, 1652451, 2527278, 3304902, 3790917, 4957353, 7160621, 7581834, 9914706, 14321242, 21481863, 42963726, 64445589, 128891178]

約数ペア:

[(1, 128891178), (2, 64445589), (3, 42963726), (6, 21481863), (9, 14321242), (13, 9914706), (17, 7581834), (18, 7160621), (26, 4957353), (34, 3790917), (39, 3304902), (51, 2527278), (78, 1652451), (102, 1263639), (117, 1101634), (153, 842426), (221, 583218), (234, 550817), (306, 421213), (442, 291609), (663, 194406), (1326, 97203), (1989, 64802), (3978, 32401)]