128656320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 224

約数和(自身を含む): 449762880

約数和(自身を除く): 321106560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 61, 64, 65, 78, 80, 96, 104, 120, 122, 130, 156, 160, 169, 183, 192, 195, 208, 240, 244, 260, 305, 312, 320, 338, 366, 390, 416, 480, 488, 507, 520, 610, 624, 676, 732, 780, 793, 832, 845, 915, 960, 976, 1014, 1040, 1220, 1248, 1352, 1464, 1560, 1586, 1690, 1830, 1952, 2028, 2080, 2197, 2379, 2440, 2496, 2535, 2704, 2928, 3120, 3172, 3380, 3660, 3904, 3965, 4056, 4160, 4394, 4758, 4880, 5070, 5408, 5856, 6240, 6344, 6591, 6760, 7320, 7930, 8112, 8788, 9516, 9760, 10140, 10309, 10816, 10985, 11712, 11895, 12480, 12688, 13182, 13520, 14640, 15860, 16224, 17576, 19032, 19520, 20280, 20618, 21970, 23790, 25376, 26364, 27040, 29280, 30927, 31720, 32448, 32955, 35152, 38064, 40560, 41236, 43940, 47580, 50752, 51545, 52728, 54080, 58560, 61854, 63440, 65910, 70304, 76128, 81120, 82472, 87880, 95160, 103090, 105456, 123708, 126880, 131820, 134017, 140608, 152256, 154635, 162240, 164944, 175760, 190320, 206180, 210912, 247416, 253760, 263640, 268034, 309270, 329888, 351520, 380640, 402051, 412360, 421824, 494832, 527280, 536068, 618540, 659776, 670085, 703040, 761280, 804102, 824720, 989664, 1054560, 1072136, 1237080, 1340170, 1608204, 1649440, 1979328, 2010255, 2109120, 2144272, 2474160, 2680340, 3216408, 3298880, 4020510, 4288544, 4948320, 5360680, 6432816, 8041020, 8577088, 9896640, 10721360, 12865632, 16082040, 21442720, 25731264, 32164080, 42885440, 64328160, 128656320]

約数ペア:

[(1, 128656320), (2, 64328160), (3, 42885440), (4, 32164080), (5, 25731264), (6, 21442720), (8, 16082040), (10, 12865632), (12, 10721360), (13, 9896640), (15, 8577088), (16, 8041020), (20, 6432816), (24, 5360680), (26, 4948320), (30, 4288544), (32, 4020510), (39, 3298880), (40, 3216408), (48, 2680340), (52, 2474160), (60, 2144272), (61, 2109120), (64, 2010255), (65, 1979328), (78, 1649440), (80, 1608204), (96, 1340170), (104, 1237080), (120, 1072136), (122, 1054560), (130, 989664), (156, 824720), (160, 804102), (169, 761280), (183, 703040), (192, 670085), (195, 659776), (208, 618540), (240, 536068), (244, 527280), (260, 494832), (305, 421824), (312, 412360), (320, 402051), (338, 380640), (366, 351520), (390, 329888), (416, 309270), (480, 268034), (488, 263640), (507, 253760), (520, 247416), (610, 210912), (624, 206180), (676, 190320), (732, 175760), (780, 164944), (793, 162240), (832, 154635), (845, 152256), (915, 140608), (960, 134017), (976, 131820), (1014, 126880), (1040, 123708), (1220, 105456), (1248, 103090), (1352, 95160), (1464, 87880), (1560, 82472), (1586, 81120), (1690, 76128), (1830, 70304), (1952, 65910), (2028, 63440), (2080, 61854), (2197, 58560), (2379, 54080), (2440, 52728), (2496, 51545), (2535, 50752), (2704, 47580), (2928, 43940), (3120, 41236), (3172, 40560), (3380, 38064), (3660, 35152), (3904, 32955), (3965, 32448), (4056, 31720), (4160, 30927), (4394, 29280), (4758, 27040), (4880, 26364), (5070, 25376), (5408, 23790), (5856, 21970), (6240, 20618), (6344, 20280), (6591, 19520), (6760, 19032), (7320, 17576), (7930, 16224), (8112, 15860), (8788, 14640), (9516, 13520), (9760, 13182), (10140, 12688), (10309, 12480), (10816, 11895), (10985, 11712)]