78869817

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2087}}^1$

素因数の和:2142

約数の個数: 48

約数和(自身を含む): 136805760

約数和(自身を除く): 57935943

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 247, 323, 663, 741, 969, 1989, 2087, 2223, 2907, 4199, 6261, 12597, 18783, 27131, 35479, 37791, 39653, 81393, 106437, 118959, 244179, 319311, 356877, 461227, 515489, 674101, 1383681, 1546467, 2022303, 4151043, 4639401, 6066909, 8763313, 26289939, 78869817]

約数ペア:

[(1, 78869817), (3, 26289939), (9, 8763313), (13, 6066909), (17, 4639401), (19, 4151043), (39, 2022303), (51, 1546467), (57, 1383681), (117, 674101), (153, 515489), (171, 461227), (221, 356877), (247, 319311), (323, 244179), (663, 118959), (741, 106437), (969, 81393), (1989, 39653), (2087, 37791), (2223, 35479), (2907, 27131), (4199, 18783), (6261, 12597)]