639108002

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{1223}}^1$

素因数の和:1538

約数の個数: 32

約数和(自身を含む): 1048723200

約数和(自身を除く): 409615198

約数列:

[1, 2, 13, 26, 101, 199, 202, 398, 1223, 1313, 2446, 2587, 2626, 5174, 15899, 20099, 31798, 40198, 123523, 243377, 247046, 261287, 486754, 522574, 1605799, 3163901, 3211598, 6327802, 24581077, 49162154, 319554001, 639108002]

約数ペア:

[(1, 639108002), (2, 319554001), (13, 49162154), (26, 24581077), (101, 6327802), (199, 3211598), (202, 3163901), (398, 1605799), (1223, 522574), (1313, 486754), (2446, 261287), (2587, 247046), (2626, 243377), (5174, 123523), (15899, 40198), (20099, 31798)]