820394960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1373}}^1$

素因数の和:1501

約数の個数: 160

約数和(自身を含む): 2404346112

約数和(自身を除く): 1583951152

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 97, 110, 112, 140, 154, 176, 194, 220, 280, 308, 385, 388, 440, 485, 560, 616, 679, 770, 776, 880, 970, 1067, 1232, 1358, 1373, 1540, 1552, 1940, 2134, 2716, 2746, 3080, 3395, 3880, 4268, 5335, 5432, 5492, 6160, 6790, 6865, 7469, 7760, 8536, 9611, 10670, 10864, 10984, 13580, 13730, 14938, 15103, 17072, 19222, 21340, 21968, 27160, 27460, 29876, 30206, 37345, 38444, 42680, 48055, 54320, 54920, 59752, 60412, 74690, 75515, 76888, 85360, 96110, 105721, 109840, 119504, 120824, 133181, 149380, 151030, 153776, 192220, 211442, 241648, 266362, 298760, 302060, 384440, 422884, 528605, 532724, 597520, 604120, 665905, 768880, 845768, 932267, 1057210, 1065448, 1208240, 1331810, 1464991, 1691536, 1864534, 2114420, 2130896, 2663620, 2929982, 3729068, 4228840, 4661335, 5327240, 5859964, 7324955, 7458136, 8457680, 9322670, 10254937, 10654480, 11719928, 14649910, 14916272, 18645340, 20509874, 23439856, 29299820, 37290680, 41019748, 51274685, 58599640, 74581360, 82039496, 102549370, 117199280, 164078992, 205098740, 410197480, 820394960]

約数ペア:

[(1, 820394960), (2, 410197480), (4, 205098740), (5, 164078992), (7, 117199280), (8, 102549370), (10, 82039496), (11, 74581360), (14, 58599640), (16, 51274685), (20, 41019748), (22, 37290680), (28, 29299820), (35, 23439856), (40, 20509874), (44, 18645340), (55, 14916272), (56, 14649910), (70, 11719928), (77, 10654480), (80, 10254937), (88, 9322670), (97, 8457680), (110, 7458136), (112, 7324955), (140, 5859964), (154, 5327240), (176, 4661335), (194, 4228840), (220, 3729068), (280, 2929982), (308, 2663620), (385, 2130896), (388, 2114420), (440, 1864534), (485, 1691536), (560, 1464991), (616, 1331810), (679, 1208240), (770, 1065448), (776, 1057210), (880, 932267), (970, 845768), (1067, 768880), (1232, 665905), (1358, 604120), (1373, 597520), (1540, 532724), (1552, 528605), (1940, 422884), (2134, 384440), (2716, 302060), (2746, 298760), (3080, 266362), (3395, 241648), (3880, 211442), (4268, 192220), (5335, 153776), (5432, 151030), (5492, 149380), (6160, 133181), (6790, 120824), (6865, 119504), (7469, 109840), (7760, 105721), (8536, 96110), (9611, 85360), (10670, 76888), (10864, 75515), (10984, 74690), (13580, 60412), (13730, 59752), (14938, 54920), (15103, 54320), (17072, 48055), (19222, 42680), (21340, 38444), (21968, 37345), (27160, 30206), (27460, 29876)]