1287408556

素因数分解:

$2^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{163}}^1\times {\mathrm{683}}^1$

素因数の和:923

約数の個数: 72

約数和(自身を含む): 2685493440

約数和(自身を除く): 1398084884

約数列:

[1, 2, 4, 7, 14, 28, 49, 59, 98, 118, 163, 196, 236, 326, 413, 652, 683, 826, 1141, 1366, 1652, 2282, 2732, 2891, 4564, 4781, 5782, 7987, 9562, 9617, 11564, 15974, 19124, 19234, 31948, 33467, 38468, 40297, 66934, 67319, 80594, 111329, 133868, 134638, 161188, 222658, 269276, 282079, 445316, 471233, 564158, 779303, 942466, 1128316, 1558606, 1884932, 1974553, 3117212, 3949106, 5455121, 6568411, 7898212, 10910242, 13136822, 21820484, 26273644, 45978877, 91957754, 183915508, 321852139, 643704278, 1287408556]

約数ペア:

[(1, 1287408556), (2, 643704278), (4, 321852139), (7, 183915508), (14, 91957754), (28, 45978877), (49, 26273644), (59, 21820484), (98, 13136822), (118, 10910242), (163, 7898212), (196, 6568411), (236, 5455121), (326, 3949106), (413, 3117212), (652, 1974553), (683, 1884932), (826, 1558606), (1141, 1128316), (1366, 942466), (1652, 779303), (2282, 564158), (2732, 471233), (2891, 445316), (4564, 282079), (4781, 269276), (5782, 222658), (7987, 161188), (9562, 134638), (9617, 133868), (11564, 111329), (15974, 80594), (19124, 67319), (19234, 66934), (31948, 40297), (33467, 38468)]