219912320

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 128

約数和(自身を含む): 550946880

約数和(自身を除く): 331034560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 61, 64, 80, 86, 122, 128, 131, 160, 172, 215, 244, 262, 305, 320, 344, 430, 488, 524, 610, 640, 655, 688, 860, 976, 1048, 1220, 1310, 1376, 1720, 1952, 2096, 2440, 2620, 2623, 2752, 3440, 3904, 4192, 4880, 5240, 5246, 5504, 5633, 6880, 7808, 7991, 8384, 9760, 10480, 10492, 11266, 13115, 13760, 15982, 16768, 19520, 20960, 20984, 22532, 26230, 27520, 28165, 31964, 39040, 39955, 41920, 41968, 45064, 52460, 56330, 63928, 79910, 83840, 83936, 90128, 104920, 112660, 127856, 159820, 167872, 180256, 209840, 225320, 255712, 319640, 335744, 343613, 360512, 419680, 450640, 511424, 639280, 687226, 721024, 839360, 901280, 1022848, 1278560, 1374452, 1678720, 1718065, 1802560, 2557120, 2748904, 3436130, 3605120, 5114240, 5497808, 6872260, 10995616, 13744520, 21991232, 27489040, 43982464, 54978080, 109956160, 219912320]

約数ペア:

[(1, 219912320), (2, 109956160), (4, 54978080), (5, 43982464), (8, 27489040), (10, 21991232), (16, 13744520), (20, 10995616), (32, 6872260), (40, 5497808), (43, 5114240), (61, 3605120), (64, 3436130), (80, 2748904), (86, 2557120), (122, 1802560), (128, 1718065), (131, 1678720), (160, 1374452), (172, 1278560), (215, 1022848), (244, 901280), (262, 839360), (305, 721024), (320, 687226), (344, 639280), (430, 511424), (488, 450640), (524, 419680), (610, 360512), (640, 343613), (655, 335744), (688, 319640), (860, 255712), (976, 225320), (1048, 209840), (1220, 180256), (1310, 167872), (1376, 159820), (1720, 127856), (1952, 112660), (2096, 104920), (2440, 90128), (2620, 83936), (2623, 83840), (2752, 79910), (3440, 63928), (3904, 56330), (4192, 52460), (4880, 45064), (5240, 41968), (5246, 41920), (5504, 39955), (5633, 39040), (6880, 31964), (7808, 28165), (7991, 27520), (8384, 26230), (9760, 22532), (10480, 20984), (10492, 20960), (11266, 19520), (13115, 16768), (13760, 15982)]