1298754320

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{64679}}^1$

素因数の和:64943

約数の個数: 40

約数和(自身を含む): 3031680960

約数和(自身を除く): 1732926640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10040, 20080, 64679, 129358, 258716, 323395, 517432, 646790, 1034864, 1293580, 2587160, 5174320, 16234429, 32468858, 64937716, 81172145, 129875432, 162344290, 259750864, 324688580, 649377160, 1298754320]

約数ペア:

[(1, 1298754320), (2, 649377160), (4, 324688580), (5, 259750864), (8, 162344290), (10, 129875432), (16, 81172145), (20, 64937716), (40, 32468858), (80, 16234429), (251, 5174320), (502, 2587160), (1004, 1293580), (1255, 1034864), (2008, 646790), (2510, 517432), (4016, 323395), (5020, 258716), (10040, 129358), (20080, 64679)]