18203780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{130027}}^1$

素因数の和:130043

約数の個数: 24

約数和(自身を含む): 43689408

約数和(自身を除く): 25485628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 130027, 260054, 520108, 650135, 910189, 1300270, 1820378, 2600540, 3640756, 4550945, 9101890, 18203780]

約数ペア:

[(1, 18203780), (2, 9101890), (4, 4550945), (5, 3640756), (7, 2600540), (10, 1820378), (14, 1300270), (20, 910189), (28, 650135), (35, 520108), (70, 260054), (140, 130027)]