264861040

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 628531200

約数和(自身を除く): 363670160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 131, 199, 254, 262, 398, 508, 524, 635, 655, 796, 995, 1016, 1048, 1270, 1310, 1592, 1990, 2032, 2096, 2540, 2620, 3184, 3980, 5080, 5240, 7960, 10160, 10480, 15920, 16637, 25273, 26069, 33274, 50546, 52138, 66548, 83185, 101092, 104276, 126365, 130345, 133096, 166370, 202184, 208552, 252730, 260690, 266192, 332740, 404368, 417104, 505460, 521380, 665480, 1010920, 1042760, 1330960, 2021840, 2085520, 3310763, 6621526, 13243052, 16553815, 26486104, 33107630, 52972208, 66215260, 132430520, 264861040]

約数ペア:

[(1, 264861040), (2, 132430520), (4, 66215260), (5, 52972208), (8, 33107630), (10, 26486104), (16, 16553815), (20, 13243052), (40, 6621526), (80, 3310763), (127, 2085520), (131, 2021840), (199, 1330960), (254, 1042760), (262, 1010920), (398, 665480), (508, 521380), (524, 505460), (635, 417104), (655, 404368), (796, 332740), (995, 266192), (1016, 260690), (1048, 252730), (1270, 208552), (1310, 202184), (1592, 166370), (1990, 133096), (2032, 130345), (2096, 126365), (2540, 104276), (2620, 101092), (3184, 83185), (3980, 66548), (5080, 52138), (5240, 50546), (7960, 33274), (10160, 26069), (10480, 25273), (15920, 16637)]