256272016

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16001}}^1$

素因数の和:16040

約数の個数: 80

約数和(自身を含む): 666707328

約数和(自身を除く): 410435312

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1232, 1456, 2002, 2288, 4004, 8008, 16001, 16016, 32002, 64004, 112007, 128008, 176011, 208013, 224014, 256016, 352022, 416026, 448028, 704044, 832052, 896056, 1232077, 1408088, 1456091, 1664104, 1792112, 2288143, 2464154, 2816176, 2912182, 3328208, 4576286, 4928308, 5824364, 9152572, 9856616, 11648728, 16017001, 18305144, 19713232, 23297456, 32034002, 36610288, 64068004, 128136008, 256272016]

約数ペア:

[(1, 256272016), (2, 128136008), (4, 64068004), (7, 36610288), (8, 32034002), (11, 23297456), (13, 19713232), (14, 18305144), (16, 16017001), (22, 11648728), (26, 9856616), (28, 9152572), (44, 5824364), (52, 4928308), (56, 4576286), (77, 3328208), (88, 2912182), (91, 2816176), (104, 2464154), (112, 2288143), (143, 1792112), (154, 1664104), (176, 1456091), (182, 1408088), (208, 1232077), (286, 896056), (308, 832052), (364, 704044), (572, 448028), (616, 416026), (728, 352022), (1001, 256016), (1144, 224014), (1232, 208013), (1456, 176011), (2002, 128008), (2288, 112007), (4004, 64004), (8008, 32002), (16001, 16016)]