208078750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:479

約数の個数: 80

約数和(自身を含む): 438047280

約数和(自身を除く): 229968530

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 125, 185, 250, 275, 370, 407, 409, 550, 625, 814, 818, 925, 1250, 1375, 1850, 2035, 2045, 2750, 4070, 4090, 4499, 4625, 6875, 8998, 9250, 10175, 10225, 13750, 15133, 20350, 20450, 22495, 23125, 30266, 44990, 46250, 50875, 51125, 75665, 101750, 102250, 112475, 151330, 166463, 224950, 254375, 255625, 332926, 378325, 508750, 511250, 562375, 756650, 832315, 1124750, 1664630, 1891625, 2811875, 3783250, 4161575, 5623750, 8323150, 9458125, 18916250, 20807875, 41615750, 104039375, 208078750]

約数ペア:

[(1, 208078750), (2, 104039375), (5, 41615750), (10, 20807875), (11, 18916250), (22, 9458125), (25, 8323150), (37, 5623750), (50, 4161575), (55, 3783250), (74, 2811875), (110, 1891625), (125, 1664630), (185, 1124750), (250, 832315), (275, 756650), (370, 562375), (407, 511250), (409, 508750), (550, 378325), (625, 332926), (814, 255625), (818, 254375), (925, 224950), (1250, 166463), (1375, 151330), (1850, 112475), (2035, 102250), (2045, 101750), (2750, 75665), (4070, 51125), (4090, 50875), (4499, 46250), (4625, 44990), (6875, 30266), (8998, 23125), (9250, 22495), (10175, 20450), (10225, 20350), (13750, 15133)]