68404040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 160974000

約数和(自身を除く): 92569960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 109, 116, 145, 218, 232, 290, 436, 541, 545, 580, 872, 1082, 1090, 1160, 2164, 2180, 2705, 3161, 4328, 4360, 5410, 6322, 10820, 12644, 15689, 15805, 21640, 25288, 31378, 31610, 58969, 62756, 63220, 78445, 117938, 125512, 126440, 156890, 235876, 294845, 313780, 471752, 589690, 627560, 1179380, 1710101, 2358760, 3420202, 6840404, 8550505, 13680808, 17101010, 34202020, 68404040]

約数ペア:

[(1, 68404040), (2, 34202020), (4, 17101010), (5, 13680808), (8, 8550505), (10, 6840404), (20, 3420202), (29, 2358760), (40, 1710101), (58, 1179380), (109, 627560), (116, 589690), (145, 471752), (218, 313780), (232, 294845), (290, 235876), (436, 156890), (541, 126440), (545, 125512), (580, 117938), (872, 78445), (1082, 63220), (1090, 62756), (1160, 58969), (2164, 31610), (2180, 31378), (2705, 25288), (3161, 21640), (4328, 15805), (4360, 15689), (5410, 12644), (6322, 10820)]