20512139760

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1356623}}^1$

素因数の和:1356652

約数の個数: 160

約数和(自身を含む): 80746260480

約数和(自身を除く): 60234120720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 1356623, 2713246, 4069869, 5426492, 6783115, 8139738, 9496361, 10852984, 12209607, 13566230, 16279476, 18992722, 20349345, 21705968, 24419214, 27132460, 28489083, 32558952, 36628821, 37985444, 40698690, 47481805, 48838428, 54264920, 56978166, 61048035, 65117904, 73257642, 75970888, 81397380, 85467249, 94963610, 97676856, 108529840, 113956332, 122096070, 142445415, 146515284, 151941776, 162794760, 170934498, 183144105, 189927220, 195353712, 227912664, 244192140, 256401747, 284890830, 293030568, 325589520, 341868996, 366288210, 379854440, 427336245, 455825328, 488384280, 512803494, 569781660, 586061136, 683737992, 732576420, 759708880, 854672490, 976768560, 1025606988, 1139563320, 1282008735, 1367475984, 1465152840, 1709344980, 2051213976, 2279126640, 2564017470, 2930305680, 3418689960, 4102427952, 5128034940, 6837379920, 10256069880, 20512139760]

約数ペア:

[(1, 20512139760), (2, 10256069880), (3, 6837379920), (4, 5128034940), (5, 4102427952), (6, 3418689960), (7, 2930305680), (8, 2564017470), (9, 2279126640), (10, 2051213976), (12, 1709344980), (14, 1465152840), (15, 1367475984), (16, 1282008735), (18, 1139563320), (20, 1025606988), (21, 976768560), (24, 854672490), (27, 759708880), (28, 732576420), (30, 683737992), (35, 586061136), (36, 569781660), (40, 512803494), (42, 488384280), (45, 455825328), (48, 427336245), (54, 379854440), (56, 366288210), (60, 341868996), (63, 325589520), (70, 293030568), (72, 284890830), (80, 256401747), (84, 244192140), (90, 227912664), (105, 195353712), (108, 189927220), (112, 183144105), (120, 170934498), (126, 162794760), (135, 151941776), (140, 146515284), (144, 142445415), (168, 122096070), (180, 113956332), (189, 108529840), (210, 97676856), (216, 94963610), (240, 85467249), (252, 81397380), (270, 75970888), (280, 73257642), (315, 65117904), (336, 61048035), (360, 56978166), (378, 54264920), (420, 48838428), (432, 47481805), (504, 40698690), (540, 37985444), (560, 36628821), (630, 32558952), (720, 28489083), (756, 27132460), (840, 24419214), (945, 21705968), (1008, 20349345), (1080, 18992722), (1260, 16279476), (1512, 13566230), (1680, 12209607), (1890, 10852984), (2160, 9496361), (2520, 8139738), (3024, 6783115), (3780, 5426492), (5040, 4069869), (7560, 2713246), (15120, 1356623)]