128001720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1979}}^1$

素因数の和:2018

約数の個数: 192

約数和(自身を含む): 487555200

約数和(自身を除く): 359553480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 49, 55, 56, 60, 66, 70, 77, 84, 88, 98, 105, 110, 120, 132, 140, 147, 154, 165, 168, 196, 210, 220, 231, 245, 264, 280, 294, 308, 330, 385, 392, 420, 440, 462, 490, 539, 588, 616, 660, 735, 770, 840, 924, 980, 1078, 1155, 1176, 1320, 1470, 1540, 1617, 1848, 1960, 1979, 2156, 2310, 2695, 2940, 3080, 3234, 3958, 4312, 4620, 5390, 5880, 5937, 6468, 7916, 8085, 9240, 9895, 10780, 11874, 12936, 13853, 15832, 16170, 19790, 21560, 21769, 23748, 27706, 29685, 32340, 39580, 41559, 43538, 47496, 55412, 59370, 64680, 65307, 69265, 79160, 83118, 87076, 96971, 108845, 110824, 118740, 130614, 138530, 152383, 166236, 174152, 193942, 207795, 217690, 237480, 261228, 277060, 290913, 304766, 326535, 332472, 387884, 415590, 435380, 457149, 484855, 522456, 554120, 581826, 609532, 653070, 761915, 775768, 831180, 870760, 914298, 969710, 1066681, 1163652, 1219064, 1306140, 1454565, 1523830, 1662360, 1828596, 1939420, 2133362, 2285745, 2327304, 2612280, 2909130, 3047660, 3200043, 3657192, 3878840, 4266724, 4571490, 5333405, 5818260, 6095320, 6400086, 8533448, 9142980, 10666810, 11636520, 12800172, 16000215, 18285960, 21333620, 25600344, 32000430, 42667240, 64000860, 128001720]

約数ペア:

[(1, 128001720), (2, 64000860), (3, 42667240), (4, 32000430), (5, 25600344), (6, 21333620), (7, 18285960), (8, 16000215), (10, 12800172), (11, 11636520), (12, 10666810), (14, 9142980), (15, 8533448), (20, 6400086), (21, 6095320), (22, 5818260), (24, 5333405), (28, 4571490), (30, 4266724), (33, 3878840), (35, 3657192), (40, 3200043), (42, 3047660), (44, 2909130), (49, 2612280), (55, 2327304), (56, 2285745), (60, 2133362), (66, 1939420), (70, 1828596), (77, 1662360), (84, 1523830), (88, 1454565), (98, 1306140), (105, 1219064), (110, 1163652), (120, 1066681), (132, 969710), (140, 914298), (147, 870760), (154, 831180), (165, 775768), (168, 761915), (196, 653070), (210, 609532), (220, 581826), (231, 554120), (245, 522456), (264, 484855), (280, 457149), (294, 435380), (308, 415590), (330, 387884), (385, 332472), (392, 326535), (420, 304766), (440, 290913), (462, 277060), (490, 261228), (539, 237480), (588, 217690), (616, 207795), (660, 193942), (735, 174152), (770, 166236), (840, 152383), (924, 138530), (980, 130614), (1078, 118740), (1155, 110824), (1176, 108845), (1320, 96971), (1470, 87076), (1540, 83118), (1617, 79160), (1848, 69265), (1960, 65307), (1979, 64680), (2156, 59370), (2310, 55412), (2695, 47496), (2940, 43538), (3080, 41559), (3234, 39580), (3958, 32340), (4312, 29685), (4620, 27706), (5390, 23748), (5880, 21769), (5937, 21560), (6468, 19790), (7916, 16170), (8085, 15832), (9240, 13853), (9895, 12936), (10780, 11874)]