212977280

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 128

約数和(自身を含む): 533174400

約数和(自身を除く): 320197120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 71, 80, 86, 109, 128, 142, 160, 172, 215, 218, 284, 320, 344, 355, 430, 436, 545, 568, 640, 688, 710, 860, 872, 1090, 1136, 1376, 1420, 1720, 1744, 2180, 2272, 2752, 2840, 3053, 3440, 3488, 4360, 4544, 4687, 5504, 5680, 6106, 6880, 6976, 7739, 8720, 9088, 9374, 11360, 12212, 13760, 13952, 15265, 15478, 17440, 18748, 22720, 23435, 24424, 27520, 30530, 30956, 34880, 37496, 38695, 45440, 46870, 48848, 61060, 61912, 69760, 74992, 77390, 93740, 97696, 122120, 123824, 149984, 154780, 187480, 195392, 244240, 247648, 299968, 309560, 332777, 374960, 390784, 488480, 495296, 599936, 619120, 665554, 749920, 976960, 990592, 1238240, 1331108, 1499840, 1663885, 1953920, 2476480, 2662216, 2999680, 3327770, 4952960, 5324432, 6655540, 10648864, 13311080, 21297728, 26622160, 42595456, 53244320, 106488640, 212977280]

約数ペア:

[(1, 212977280), (2, 106488640), (4, 53244320), (5, 42595456), (8, 26622160), (10, 21297728), (16, 13311080), (20, 10648864), (32, 6655540), (40, 5324432), (43, 4952960), (64, 3327770), (71, 2999680), (80, 2662216), (86, 2476480), (109, 1953920), (128, 1663885), (142, 1499840), (160, 1331108), (172, 1238240), (215, 990592), (218, 976960), (284, 749920), (320, 665554), (344, 619120), (355, 599936), (430, 495296), (436, 488480), (545, 390784), (568, 374960), (640, 332777), (688, 309560), (710, 299968), (860, 247648), (872, 244240), (1090, 195392), (1136, 187480), (1376, 154780), (1420, 149984), (1720, 123824), (1744, 122120), (2180, 97696), (2272, 93740), (2752, 77390), (2840, 74992), (3053, 69760), (3440, 61912), (3488, 61060), (4360, 48848), (4544, 46870), (4687, 45440), (5504, 38695), (5680, 37496), (6106, 34880), (6880, 30956), (6976, 30530), (7739, 27520), (8720, 24424), (9088, 23435), (9374, 22720), (11360, 18748), (12212, 17440), (13760, 15478), (13952, 15265)]