719783120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1297}}^1$

素因数の和:2308

約数の個数: 80

約数和(自身を含む): 1915972608

約数和(自身を除く): 1196189488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 991, 1297, 1982, 2594, 3964, 4955, 5188, 6485, 6937, 7928, 9079, 9910, 10376, 12970, 13874, 15856, 18158, 19820, 20752, 25940, 27748, 34685, 36316, 39640, 45395, 51880, 55496, 69370, 72632, 79280, 90790, 103760, 110992, 138740, 145264, 181580, 277480, 363160, 554960, 726320, 1285327, 2570654, 5141308, 6426635, 8997289, 10282616, 12853270, 17994578, 20565232, 25706540, 35989156, 44986445, 51413080, 71978312, 89972890, 102826160, 143956624, 179945780, 359891560, 719783120]

約数ペア:

[(1, 719783120), (2, 359891560), (4, 179945780), (5, 143956624), (7, 102826160), (8, 89972890), (10, 71978312), (14, 51413080), (16, 44986445), (20, 35989156), (28, 25706540), (35, 20565232), (40, 17994578), (56, 12853270), (70, 10282616), (80, 8997289), (112, 6426635), (140, 5141308), (280, 2570654), (560, 1285327), (991, 726320), (1297, 554960), (1982, 363160), (2594, 277480), (3964, 181580), (4955, 145264), (5188, 138740), (6485, 110992), (6937, 103760), (7928, 90790), (9079, 79280), (9910, 72632), (10376, 69370), (12970, 55496), (13874, 51880), (15856, 45395), (18158, 39640), (19820, 36316), (20752, 34685), (25940, 27748)]