20563970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1117}}^1$

素因数の和:1394

約数の個数: 32

約数和(自身を含む): 42501888

約数和(自身を除く): 21937918

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 263, 526, 1117, 1315, 1841, 2234, 2630, 3682, 5585, 7819, 9205, 11170, 15638, 18410, 39095, 78190, 293771, 587542, 1468855, 2056397, 2937710, 4112794, 10281985, 20563970]

約数ペア:

[(1, 20563970), (2, 10281985), (5, 4112794), (7, 2937710), (10, 2056397), (14, 1468855), (35, 587542), (70, 293771), (263, 78190), (526, 39095), (1117, 18410), (1315, 15638), (1841, 11170), (2234, 9205), (2630, 7819), (3682, 5585)]