257820160

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:224

約数の個数: 160

約数和(自身を含む): 681956352

約数和(自身を除く): 424136192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 127, 128, 130, 160, 208, 244, 254, 256, 260, 305, 320, 416, 488, 508, 512, 520, 610, 635, 640, 793, 832, 976, 1016, 1040, 1220, 1270, 1280, 1586, 1651, 1664, 1952, 2032, 2080, 2440, 2540, 2560, 3172, 3302, 3328, 3904, 3965, 4064, 4160, 4880, 5080, 6344, 6604, 6656, 7747, 7808, 7930, 8128, 8255, 8320, 9760, 10160, 12688, 13208, 15494, 15616, 15860, 16256, 16510, 16640, 19520, 20320, 25376, 26416, 30988, 31232, 31720, 32512, 33020, 33280, 38735, 39040, 40640, 50752, 52832, 61976, 63440, 65024, 66040, 77470, 78080, 81280, 100711, 101504, 105664, 123952, 126880, 132080, 154940, 156160, 162560, 201422, 203008, 211328, 247904, 253760, 264160, 309880, 325120, 402844, 406016, 422656, 495808, 503555, 507520, 528320, 619760, 805688, 845312, 991616, 1007110, 1015040, 1056640, 1239520, 1611376, 1983232, 2014220, 2030080, 2113280, 2479040, 3222752, 3966464, 4028440, 4226560, 4958080, 6445504, 8056880, 9916160, 12891008, 16113760, 19832320, 25782016, 32227520, 51564032, 64455040, 128910080, 257820160]

約数ペア:

[(1, 257820160), (2, 128910080), (4, 64455040), (5, 51564032), (8, 32227520), (10, 25782016), (13, 19832320), (16, 16113760), (20, 12891008), (26, 9916160), (32, 8056880), (40, 6445504), (52, 4958080), (61, 4226560), (64, 4028440), (65, 3966464), (80, 3222752), (104, 2479040), (122, 2113280), (127, 2030080), (128, 2014220), (130, 1983232), (160, 1611376), (208, 1239520), (244, 1056640), (254, 1015040), (256, 1007110), (260, 991616), (305, 845312), (320, 805688), (416, 619760), (488, 528320), (508, 507520), (512, 503555), (520, 495808), (610, 422656), (635, 406016), (640, 402844), (793, 325120), (832, 309880), (976, 264160), (1016, 253760), (1040, 247904), (1220, 211328), (1270, 203008), (1280, 201422), (1586, 162560), (1651, 156160), (1664, 154940), (1952, 132080), (2032, 126880), (2080, 123952), (2440, 105664), (2540, 101504), (2560, 100711), (3172, 81280), (3302, 78080), (3328, 77470), (3904, 66040), (3965, 65024), (4064, 63440), (4160, 61976), (4880, 52832), (5080, 50752), (6344, 40640), (6604, 39040), (6656, 38735), (7747, 33280), (7808, 33020), (7930, 32512), (8128, 31720), (8255, 31232), (8320, 30988), (9760, 26416), (10160, 25376), (12688, 20320), (13208, 19520), (15494, 16640), (15616, 16510), (15860, 16256)]