12889420

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6257}}^1$

素因数の和:6369

約数の個数: 24

約数和(自身を含む): 27334944

約数和(自身を除く): 14445524

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 6257, 12514, 25028, 31285, 62570, 125140, 644471, 1288942, 2577884, 3222355, 6444710, 12889420]

約数ペア:

[(1, 12889420), (2, 6444710), (4, 3222355), (5, 2577884), (10, 1288942), (20, 644471), (103, 125140), (206, 62570), (412, 31285), (515, 25028), (1030, 12514), (2060, 6257)]