1390540

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{277}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 2942352

約数和(自身を除く): 1551812

約数列:

[1, 2, 4, 5, 10, 20, 251, 277, 502, 554, 1004, 1108, 1255, 1385, 2510, 2770, 5020, 5540, 69527, 139054, 278108, 347635, 695270, 1390540]

約数ペア:

[(1, 1390540), (2, 695270), (4, 347635), (5, 278108), (10, 139054), (20, 69527), (251, 5540), (277, 5020), (502, 2770), (554, 2510), (1004, 1385), (1108, 1255)]