64319780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{459427}}^1$

素因数の和:459443

約数の個数: 24

約数和(自身を含む): 154367808

約数和(自身を除く): 90048028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 459427, 918854, 1837708, 2297135, 3215989, 4594270, 6431978, 9188540, 12863956, 16079945, 32159890, 64319780]

約数ペア:

[(1, 64319780), (2, 32159890), (4, 16079945), (5, 12863956), (7, 9188540), (10, 6431978), (14, 4594270), (20, 3215989), (28, 2297135), (35, 1837708), (70, 918854), (140, 459427)]