208756496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 463928640

約数和(自身を除く): 255172144

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 101, 104, 152, 202, 208, 247, 304, 404, 494, 523, 808, 988, 1046, 1313, 1616, 1919, 1976, 2092, 2626, 3838, 3952, 4184, 5252, 6799, 7676, 8368, 9937, 10504, 13598, 15352, 19874, 21008, 24947, 27196, 30704, 39748, 49894, 52823, 54392, 79496, 99788, 105646, 108784, 129181, 158992, 199576, 211292, 258362, 399152, 422584, 516724, 686699, 845168, 1003637, 1033448, 1373398, 2007274, 2066896, 2746796, 4014548, 5493592, 8029096, 10987184, 13047281, 16058192, 26094562, 52189124, 104378248, 208756496]

約数ペア:

[(1, 208756496), (2, 104378248), (4, 52189124), (8, 26094562), (13, 16058192), (16, 13047281), (19, 10987184), (26, 8029096), (38, 5493592), (52, 4014548), (76, 2746796), (101, 2066896), (104, 2007274), (152, 1373398), (202, 1033448), (208, 1003637), (247, 845168), (304, 686699), (404, 516724), (494, 422584), (523, 399152), (808, 258362), (988, 211292), (1046, 199576), (1313, 158992), (1616, 129181), (1919, 108784), (1976, 105646), (2092, 99788), (2626, 79496), (3838, 54392), (3952, 52823), (4184, 49894), (5252, 39748), (6799, 30704), (7676, 27196), (8368, 24947), (9937, 21008), (10504, 19874), (13598, 15352)]