128910080

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 340644864

約数和(自身を除く): 211734784

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, 520, 610, 635, 640, 793, 832, 976, 1016, 1040, 1220, 1270, 1280, 1586, 1651, 1664, 1952, 2032, 2080, 2440, 2540, 3172, 3302, 3328, 3904, 3965, 4064, 4160, 4880, 5080, 6344, 6604, 7747, 7808, 7930, 8128, 8255, 8320, 9760, 10160, 12688, 13208, 15494, 15616, 15860, 16256, 16510, 16640, 19520, 20320, 25376, 26416, 30988, 31720, 32512, 33020, 38735, 39040, 40640, 50752, 52832, 61976, 63440, 66040, 77470, 78080, 81280, 100711, 101504, 105664, 123952, 126880, 132080, 154940, 162560, 201422, 203008, 211328, 247904, 253760, 264160, 309880, 402844, 422656, 495808, 503555, 507520, 528320, 619760, 805688, 991616, 1007110, 1015040, 1056640, 1239520, 1611376, 1983232, 2014220, 2113280, 2479040, 3222752, 4028440, 4958080, 6445504, 8056880, 9916160, 12891008, 16113760, 25782016, 32227520, 64455040, 128910080]

約数ペア:

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