18618460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{132989}}^1$

素因数の和:133005

約数の個数: 24

約数和(自身を含む): 44684640

約数和(自身を除く): 26066180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 132989, 265978, 531956, 664945, 930923, 1329890, 1861846, 2659780, 3723692, 4654615, 9309230, 18618460]

約数ペア:

[(1, 18618460), (2, 9309230), (4, 4654615), (5, 3723692), (7, 2659780), (10, 1861846), (14, 1329890), (20, 930923), (28, 664945), (35, 531956), (70, 265978), (140, 132989)]