1277261245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{276763}}^1$

素因数の和:276852

約数の個数: 16

約数和(自身を含む): 1673868672

約数和(自身を除く): 396607427

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 276763, 1383815, 3597919, 17989595, 19650173, 98250865, 255452249, 1277261245]

約数ペア:

[(1, 1277261245), (5, 255452249), (13, 98250865), (65, 19650173), (71, 17989595), (355, 3597919), (923, 1383815), (4615, 276763)]