231465885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{739}}^1$

素因数の和:930

約数の個数: 64

約数和(自身を含む): 448972800

約数和(自身を除く): 217506915

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 157, 285, 399, 471, 665, 739, 785, 1099, 1995, 2217, 2355, 2983, 3297, 3695, 5173, 5495, 8949, 11085, 14041, 14915, 15519, 16485, 20881, 25865, 42123, 44745, 62643, 70205, 77595, 98287, 104405, 116023, 210615, 294861, 313215, 348069, 491435, 580115, 812161, 1474305, 1740345, 2204437, 2436483, 4060805, 6613311, 11022185, 12182415, 15431059, 33066555, 46293177, 77155295, 231465885]

約数ペア:

[(1, 231465885), (3, 77155295), (5, 46293177), (7, 33066555), (15, 15431059), (19, 12182415), (21, 11022185), (35, 6613311), (57, 4060805), (95, 2436483), (105, 2204437), (133, 1740345), (157, 1474305), (285, 812161), (399, 580115), (471, 491435), (665, 348069), (739, 313215), (785, 294861), (1099, 210615), (1995, 116023), (2217, 104405), (2355, 98287), (2983, 77595), (3297, 70205), (3695, 62643), (5173, 44745), (5495, 42123), (8949, 25865), (11085, 20881), (14041, 16485), (14915, 15519)]