129202460

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{16607}}^1$

素因数の和:17005

約数の個数: 24

約数和(自身を含む): 272039040

約数和(自身を除く): 142836580

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 16607, 33214, 66428, 83035, 166070, 332140, 6460123, 12920246, 25840492, 32300615, 64601230, 129202460]

約数ペア:

[(1, 129202460), (2, 64601230), (4, 32300615), (5, 25840492), (10, 12920246), (20, 6460123), (389, 332140), (778, 166070), (1556, 83035), (1945, 66428), (3890, 33214), (7780, 16607)]