209069440

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 523480320

約数和(自身を除く): 314410880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 71, 80, 86, 107, 128, 142, 160, 172, 214, 215, 284, 320, 344, 355, 428, 430, 535, 568, 640, 688, 710, 856, 860, 1070, 1136, 1376, 1420, 1712, 1720, 2140, 2272, 2752, 2840, 3053, 3424, 3440, 4280, 4544, 4601, 5504, 5680, 6106, 6848, 6880, 7597, 8560, 9088, 9202, 11360, 12212, 13696, 13760, 15194, 15265, 17120, 18404, 22720, 23005, 24424, 27520, 30388, 30530, 34240, 36808, 37985, 45440, 46010, 48848, 60776, 61060, 68480, 73616, 75970, 92020, 97696, 121552, 122120, 147232, 151940, 184040, 195392, 243104, 244240, 294464, 303880, 326671, 368080, 390784, 486208, 488480, 588928, 607760, 653342, 736160, 972416, 976960, 1215520, 1306684, 1472320, 1633355, 1953920, 2431040, 2613368, 2944640, 3266710, 4862080, 5226736, 6533420, 10453472, 13066840, 20906944, 26133680, 41813888, 52267360, 104534720, 209069440]

約数ペア:

[(1, 209069440), (2, 104534720), (4, 52267360), (5, 41813888), (8, 26133680), (10, 20906944), (16, 13066840), (20, 10453472), (32, 6533420), (40, 5226736), (43, 4862080), (64, 3266710), (71, 2944640), (80, 2613368), (86, 2431040), (107, 1953920), (128, 1633355), (142, 1472320), (160, 1306684), (172, 1215520), (214, 976960), (215, 972416), (284, 736160), (320, 653342), (344, 607760), (355, 588928), (428, 488480), (430, 486208), (535, 390784), (568, 368080), (640, 326671), (688, 303880), (710, 294464), (856, 244240), (860, 243104), (1070, 195392), (1136, 184040), (1376, 151940), (1420, 147232), (1712, 122120), (1720, 121552), (2140, 97696), (2272, 92020), (2752, 75970), (2840, 73616), (3053, 68480), (3424, 61060), (3440, 60776), (4280, 48848), (4544, 46010), (4601, 45440), (5504, 37985), (5680, 36808), (6106, 34240), (6848, 30530), (6880, 30388), (7597, 27520), (8560, 24424), (9088, 23005), (9202, 22720), (11360, 18404), (12212, 17120), (13696, 15265), (13760, 15194)]