127939820

素因数分解:

$2^2\times 5^1\times {\mathrm{2011}}^1\times {\mathrm{3181}}^1$

素因数の和:5201

約数の個数: 24

約数和(自身を含む): 268891728

約数和(自身を除く): 140951908

約数列:

[1, 2, 4, 5, 10, 20, 2011, 3181, 4022, 6362, 8044, 10055, 12724, 15905, 20110, 31810, 40220, 63620, 6396991, 12793982, 25587964, 31984955, 63969910, 127939820]

約数ペア:

[(1, 127939820), (2, 63969910), (4, 31984955), (5, 25587964), (10, 12793982), (20, 6396991), (2011, 63620), (3181, 40220), (4022, 31810), (6362, 20110), (8044, 15905), (10055, 12724)]