28673645

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 49061376

約数和(自身を除く): 20387731

約数列:

[1, 5, 7, 11, 13, 17, 35, 55, 65, 77, 85, 91, 119, 143, 187, 221, 337, 385, 455, 595, 715, 935, 1001, 1105, 1309, 1547, 1685, 2359, 2431, 3707, 4381, 5005, 5729, 6545, 7735, 11795, 12155, 17017, 18535, 21905, 25949, 28645, 30667, 40103, 48191, 63019, 74477, 85085, 129745, 153335, 200515, 240955, 315095, 337337, 372385, 441133, 521339, 819247, 1686685, 2205665, 2606695, 4096235, 5734729, 28673645]

約数ペア:

[(1, 28673645), (5, 5734729), (7, 4096235), (11, 2606695), (13, 2205665), (17, 1686685), (35, 819247), (55, 521339), (65, 441133), (77, 372385), (85, 337337), (91, 315095), (119, 240955), (143, 200515), (187, 153335), (221, 129745), (337, 85085), (385, 74477), (455, 63019), (595, 48191), (715, 40103), (935, 30667), (1001, 28645), (1105, 25949), (1309, 21905), (1547, 18535), (1685, 17017), (2359, 12155), (2431, 11795), (3707, 7735), (4381, 6545), (5005, 5729)]