81820793216

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{43223}}^1$

素因数の和:43903

約数の個数: 64

約数和(自身を含む): 170357886720

約数和(自身を除く): 88537093504

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 368, 643, 736, 1286, 1472, 2572, 2944, 5144, 10288, 14789, 20576, 29578, 41152, 43223, 59156, 82304, 86446, 118312, 172892, 236624, 345784, 473248, 691568, 946496, 994129, 1383136, 1892992, 1988258, 2766272, 3976516, 5532544, 7953032, 15906064, 27792389, 31812128, 55584778, 63624256, 111169556, 127248512, 222339112, 444678224, 639224947, 889356448, 1278449894, 1778712896, 2556899788, 3557425792, 5113799576, 10227599152, 20455198304, 40910396608, 81820793216]

約数ペア:

[(1, 81820793216), (2, 40910396608), (4, 20455198304), (8, 10227599152), (16, 5113799576), (23, 3557425792), (32, 2556899788), (46, 1778712896), (64, 1278449894), (92, 889356448), (128, 639224947), (184, 444678224), (368, 222339112), (643, 127248512), (736, 111169556), (1286, 63624256), (1472, 55584778), (2572, 31812128), (2944, 27792389), (5144, 15906064), (10288, 7953032), (14789, 5532544), (20576, 3976516), (29578, 2766272), (41152, 1988258), (43223, 1892992), (59156, 1383136), (82304, 994129), (86446, 946496), (118312, 691568), (172892, 473248), (236624, 345784)]