12657820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3931}}^1$

素因数の和:3970

約数の個数: 48

約数和(自身を含む): 31707648

約数和(自身を除く): 19049828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 3931, 7862, 15724, 19655, 27517, 39310, 55034, 78620, 90413, 110068, 137585, 180826, 275170, 361652, 452065, 550340, 632891, 904130, 1265782, 1808260, 2531564, 3164455, 6328910, 12657820]

約数ペア:

[(1, 12657820), (2, 6328910), (4, 3164455), (5, 2531564), (7, 1808260), (10, 1265782), (14, 904130), (20, 632891), (23, 550340), (28, 452065), (35, 361652), (46, 275170), (70, 180826), (92, 137585), (115, 110068), (140, 90413), (161, 78620), (230, 55034), (322, 39310), (460, 27517), (644, 19655), (805, 15724), (1610, 7862), (3220, 3931)]