18408460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131489}}^1$

素因数の和:131505

約数の個数: 24

約数和(自身を含む): 44180640

約数和(自身を除く): 25772180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131489, 262978, 525956, 657445, 920423, 1314890, 1840846, 2629780, 3681692, 4602115, 9204230, 18408460]

約数ペア:

[(1, 18408460), (2, 9204230), (4, 4602115), (5, 3681692), (7, 2629780), (10, 1840846), (14, 1314890), (20, 920423), (28, 657445), (35, 525956), (70, 262978), (140, 131489)]