51291520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{107}}^2$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 141457680

約数和(自身を除く): 90166160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 107, 112, 128, 140, 160, 214, 224, 280, 320, 428, 448, 535, 560, 640, 749, 856, 896, 1070, 1120, 1498, 1712, 2140, 2240, 2996, 3424, 3745, 4280, 4480, 5992, 6848, 7490, 8560, 11449, 11984, 13696, 14980, 17120, 22898, 23968, 29960, 34240, 45796, 47936, 57245, 59920, 68480, 80143, 91592, 95872, 114490, 119840, 160286, 183184, 228980, 239680, 320572, 366368, 400715, 457960, 479360, 641144, 732736, 801430, 915920, 1282288, 1465472, 1602860, 1831840, 2564576, 3205720, 3663680, 5129152, 6411440, 7327360, 10258304, 12822880, 25645760, 51291520]

約数ペア:

[(1, 51291520), (2, 25645760), (4, 12822880), (5, 10258304), (7, 7327360), (8, 6411440), (10, 5129152), (14, 3663680), (16, 3205720), (20, 2564576), (28, 1831840), (32, 1602860), (35, 1465472), (40, 1282288), (56, 915920), (64, 801430), (70, 732736), (80, 641144), (107, 479360), (112, 457960), (128, 400715), (140, 366368), (160, 320572), (214, 239680), (224, 228980), (280, 183184), (320, 160286), (428, 119840), (448, 114490), (535, 95872), (560, 91592), (640, 80143), (749, 68480), (856, 59920), (896, 57245), (1070, 47936), (1120, 45796), (1498, 34240), (1712, 29960), (2140, 23968), (2240, 22898), (2996, 17120), (3424, 14980), (3745, 13696), (4280, 11984), (4480, 11449), (5992, 8560), (6848, 7490)]