19782860

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3761}}^1$

素因数の和:4033

約数の個数: 24

約数和(自身を含む): 41713056

約数和(自身を除く): 21930196

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3761, 5260, 7522, 15044, 18805, 37610, 75220, 989143, 1978286, 3956572, 4945715, 9891430, 19782860]

約数ペア:

[(1, 19782860), (2, 9891430), (4, 4945715), (5, 3956572), (10, 1978286), (20, 989143), (263, 75220), (526, 37610), (1052, 18805), (1315, 15044), (2630, 7522), (3761, 5260)]