68497280

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 128

約数和(自身を含む): 177724800

約数和(自身を除く): 109227520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 64, 76, 80, 86, 95, 128, 131, 152, 160, 172, 190, 215, 262, 304, 320, 344, 380, 430, 524, 608, 640, 655, 688, 760, 817, 860, 1048, 1216, 1310, 1376, 1520, 1634, 1720, 2096, 2432, 2489, 2620, 2752, 3040, 3268, 3440, 4085, 4192, 4978, 5240, 5504, 5633, 6080, 6536, 6880, 8170, 8384, 9956, 10480, 11266, 12160, 12445, 13072, 13760, 16340, 16768, 19912, 20960, 22532, 24890, 26144, 27520, 28165, 32680, 39824, 41920, 45064, 49780, 52288, 56330, 65360, 79648, 83840, 90128, 99560, 104576, 107027, 112660, 130720, 159296, 180256, 199120, 214054, 225320, 261440, 318592, 360512, 398240, 428108, 450640, 522880, 535135, 721024, 796480, 856216, 901280, 1070270, 1592960, 1712432, 1802560, 2140540, 3424864, 3605120, 4281080, 6849728, 8562160, 13699456, 17124320, 34248640, 68497280]

約数ペア:

[(1, 68497280), (2, 34248640), (4, 17124320), (5, 13699456), (8, 8562160), (10, 6849728), (16, 4281080), (19, 3605120), (20, 3424864), (32, 2140540), (38, 1802560), (40, 1712432), (43, 1592960), (64, 1070270), (76, 901280), (80, 856216), (86, 796480), (95, 721024), (128, 535135), (131, 522880), (152, 450640), (160, 428108), (172, 398240), (190, 360512), (215, 318592), (262, 261440), (304, 225320), (320, 214054), (344, 199120), (380, 180256), (430, 159296), (524, 130720), (608, 112660), (640, 107027), (655, 104576), (688, 99560), (760, 90128), (817, 83840), (860, 79648), (1048, 65360), (1216, 56330), (1310, 52288), (1376, 49780), (1520, 45064), (1634, 41920), (1720, 39824), (2096, 32680), (2432, 28165), (2489, 27520), (2620, 26144), (2752, 24890), (3040, 22532), (3268, 20960), (3440, 19912), (4085, 16768), (4192, 16340), (4978, 13760), (5240, 13072), (5504, 12445), (5633, 12160), (6080, 11266), (6536, 10480), (6880, 9956), (8170, 8384)]