1691120

素因数分解:

$2^4\times 5^1\times {\mathrm{21139}}^1$

素因数の和:21152

約数の個数: 20

約数和(自身を含む): 3932040

約数和(自身を除く): 2240920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21139, 42278, 84556, 105695, 169112, 211390, 338224, 422780, 845560, 1691120]

約数ペア:

[(1, 1691120), (2, 845560), (4, 422780), (5, 338224), (8, 211390), (10, 169112), (16, 105695), (20, 84556), (40, 42278), (80, 21139)]