19753880

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1399}}^1$

素因数の和:1763

約数の個数: 32

約数和(自身を含む): 44604000

約数和(自身を除く): 24850120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1399, 1412, 1765, 2798, 2824, 3530, 5596, 6995, 7060, 11192, 13990, 14120, 27980, 55960, 493847, 987694, 1975388, 2469235, 3950776, 4938470, 9876940, 19753880]

約数ペア:

[(1, 19753880), (2, 9876940), (4, 4938470), (5, 3950776), (8, 2469235), (10, 1975388), (20, 987694), (40, 493847), (353, 55960), (706, 27980), (1399, 14120), (1412, 13990), (1765, 11192), (2798, 7060), (2824, 6995), (3530, 5596)]