381452020

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{12809}}^1$

素因数の和:14307

約数の個数: 24

約数和(自身を含む): 801649800

約数和(自身を除く): 420197780

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 7445, 12809, 14890, 25618, 29780, 51236, 64045, 128090, 256180, 19072601, 38145202, 76290404, 95363005, 190726010, 381452020]

約数ペア:

[(1, 381452020), (2, 190726010), (4, 95363005), (5, 76290404), (10, 38145202), (20, 19072601), (1489, 256180), (2978, 128090), (5956, 64045), (7445, 51236), (12809, 29780), (14890, 25618)]