399152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:141

約数の個数: 40

約数和(自身を含む): 885360

約数和(自身を除く): 486208

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 101, 104, 152, 202, 208, 247, 304, 404, 494, 808, 988, 1313, 1616, 1919, 1976, 2626, 3838, 3952, 5252, 7676, 10504, 15352, 21008, 24947, 30704, 49894, 99788, 199576, 399152]

約数ペア:

[(1, 399152), (2, 199576), (4, 99788), (8, 49894), (13, 30704), (16, 24947), (19, 21008), (26, 15352), (38, 10504), (52, 7676), (76, 5252), (101, 3952), (104, 3838), (152, 2626), (202, 1976), (208, 1919), (247, 1616), (304, 1313), (404, 988), (494, 808)]