12590620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 30481920

約数和(自身を除く): 17891300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 647, 695, 973, 1294, 1390, 1946, 2588, 2780, 3235, 3892, 4529, 4865, 6470, 9058, 9730, 12940, 18116, 19460, 22645, 45290, 89933, 90580, 179866, 359732, 449665, 629531, 899330, 1259062, 1798660, 2518124, 3147655, 6295310, 12590620]

約数ペア:

[(1, 12590620), (2, 6295310), (4, 3147655), (5, 2518124), (7, 1798660), (10, 1259062), (14, 899330), (20, 629531), (28, 449665), (35, 359732), (70, 179866), (139, 90580), (140, 89933), (278, 45290), (556, 22645), (647, 19460), (695, 18116), (973, 12940), (1294, 9730), (1390, 9058), (1946, 6470), (2588, 4865), (2780, 4529), (3235, 3892)]