205715280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:461

約数の個数: 160

約数和(自身を含む): 677635200

約数和(自身を除く): 471919920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 197, 228, 229, 240, 285, 304, 380, 394, 456, 458, 570, 591, 687, 760, 788, 912, 916, 985, 1140, 1145, 1182, 1374, 1520, 1576, 1832, 1970, 2280, 2290, 2364, 2748, 2955, 3152, 3435, 3664, 3743, 3940, 4351, 4560, 4580, 4728, 5496, 5910, 6870, 7486, 7880, 8702, 9160, 9456, 10992, 11229, 11820, 13053, 13740, 14972, 15760, 17404, 18320, 18715, 21755, 22458, 23640, 26106, 27480, 29944, 34808, 37430, 43510, 44916, 45113, 47280, 52212, 54960, 56145, 59888, 65265, 69616, 74860, 87020, 89832, 90226, 104424, 112290, 130530, 135339, 149720, 174040, 179664, 180452, 208848, 224580, 225565, 261060, 270678, 299440, 348080, 360904, 449160, 451130, 522120, 541356, 676695, 721808, 857147, 898320, 902260, 1044240, 1082712, 1353390, 1714294, 1804520, 2165424, 2571441, 2706780, 3428588, 3609040, 4285735, 5142882, 5413560, 6857176, 8571470, 10285764, 10827120, 12857205, 13714352, 17142940, 20571528, 25714410, 34285880, 41143056, 51428820, 68571760, 102857640, 205715280]

約数ペア:

[(1, 205715280), (2, 102857640), (3, 68571760), (4, 51428820), (5, 41143056), (6, 34285880), (8, 25714410), (10, 20571528), (12, 17142940), (15, 13714352), (16, 12857205), (19, 10827120), (20, 10285764), (24, 8571470), (30, 6857176), (38, 5413560), (40, 5142882), (48, 4285735), (57, 3609040), (60, 3428588), (76, 2706780), (80, 2571441), (95, 2165424), (114, 1804520), (120, 1714294), (152, 1353390), (190, 1082712), (197, 1044240), (228, 902260), (229, 898320), (240, 857147), (285, 721808), (304, 676695), (380, 541356), (394, 522120), (456, 451130), (458, 449160), (570, 360904), (591, 348080), (687, 299440), (760, 270678), (788, 261060), (912, 225565), (916, 224580), (985, 208848), (1140, 180452), (1145, 179664), (1182, 174040), (1374, 149720), (1520, 135339), (1576, 130530), (1832, 112290), (1970, 104424), (2280, 90226), (2290, 89832), (2364, 87020), (2748, 74860), (2955, 69616), (3152, 65265), (3435, 59888), (3664, 56145), (3743, 54960), (3940, 52212), (4351, 47280), (4560, 45113), (4580, 44916), (4728, 43510), (5496, 37430), (5910, 34808), (6870, 29944), (7486, 27480), (7880, 26106), (8702, 23640), (9160, 22458), (9456, 21755), (10992, 18715), (11229, 18320), (11820, 17404), (13053, 15760), (13740, 14972)]