12810220

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{7717}}^1$

素因数の和:7809

約数の個数: 24

約数和(自身を含む): 27229104

約数和(自身を除く): 14418884

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 7717, 15434, 30868, 38585, 77170, 154340, 640511, 1281022, 2562044, 3202555, 6405110, 12810220]

約数ペア:

[(1, 12810220), (2, 6405110), (4, 3202555), (5, 2562044), (10, 1281022), (20, 640511), (83, 154340), (166, 77170), (332, 38585), (415, 30868), (830, 15434), (1660, 7717)]