205748720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{607}}^1$

素因数の和:862

約数の個数: 80

約数和(自身を含む): 506634240

約数和(自身を除く): 300885520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 223, 304, 380, 446, 607, 760, 892, 1115, 1214, 1520, 1784, 2230, 2428, 3035, 3568, 4237, 4460, 4856, 6070, 8474, 8920, 9712, 11533, 12140, 16948, 17840, 21185, 23066, 24280, 33896, 42370, 46132, 48560, 57665, 67792, 84740, 92264, 115330, 135361, 169480, 184528, 230660, 270722, 338960, 461320, 541444, 676805, 922640, 1082888, 1353610, 2165776, 2571859, 2707220, 5143718, 5414440, 10287436, 10828880, 12859295, 20574872, 25718590, 41149744, 51437180, 102874360, 205748720]

約数ペア:

[(1, 205748720), (2, 102874360), (4, 51437180), (5, 41149744), (8, 25718590), (10, 20574872), (16, 12859295), (19, 10828880), (20, 10287436), (38, 5414440), (40, 5143718), (76, 2707220), (80, 2571859), (95, 2165776), (152, 1353610), (190, 1082888), (223, 922640), (304, 676805), (380, 541444), (446, 461320), (607, 338960), (760, 270722), (892, 230660), (1115, 184528), (1214, 169480), (1520, 135361), (1784, 115330), (2230, 92264), (2428, 84740), (3035, 67792), (3568, 57665), (4237, 48560), (4460, 46132), (4856, 42370), (6070, 33896), (8474, 24280), (8920, 23066), (9712, 21185), (11533, 17840), (12140, 16948)]