51744140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2659}}^1$

素因数の和:2814

約数の個数: 48

約数和(自身を含む): 125126400

約数和(自身を除く): 73382260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2659, 2780, 3892, 4865, 5318, 9730, 10636, 13295, 18613, 19460, 26590, 37226, 53180, 74452, 93065, 186130, 369601, 372260, 739202, 1478404, 1848005, 2587207, 3696010, 5174414, 7392020, 10348828, 12936035, 25872070, 51744140]

約数ペア:

[(1, 51744140), (2, 25872070), (4, 12936035), (5, 10348828), (7, 7392020), (10, 5174414), (14, 3696010), (20, 2587207), (28, 1848005), (35, 1478404), (70, 739202), (139, 372260), (140, 369601), (278, 186130), (556, 93065), (695, 74452), (973, 53180), (1390, 37226), (1946, 26590), (2659, 19460), (2780, 18613), (3892, 13295), (4865, 10636), (5318, 9730)]