291225880120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1861}}^1\times {\mathrm{2837}}^1$

素因数の和:4913

約数の個数: 128

約数和(自身を含む): 753337791360

約数和(自身を除く): 462111911240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 394, 788, 985, 1379, 1576, 1861, 1970, 2758, 2837, 3722, 3940, 5516, 5674, 6895, 7444, 7880, 9305, 11032, 11348, 13027, 13790, 14185, 14888, 18610, 19859, 22696, 26054, 27580, 28370, 37220, 39718, 52108, 55160, 56740, 65135, 74440, 79436, 99295, 104216, 113480, 130270, 158872, 198590, 260540, 366617, 397180, 521080, 558889, 733234, 794360, 1117778, 1466468, 1833085, 2235556, 2566319, 2794445, 2932936, 3666170, 3912223, 4471112, 5132638, 5279657, 5588890, 7332340, 7824446, 10265276, 10559314, 11177780, 12831595, 14664680, 15648892, 19561115, 20530552, 21118628, 22355560, 25663190, 26398285, 31297784, 36957599, 39122230, 42237256, 51326380, 52796570, 73915198, 78244460, 102652760, 105593140, 147830396, 156488920, 184787995, 211186280, 295660792, 369575990, 739151980, 1040092429, 1478303960, 2080184858, 4160369716, 5200462145, 7280647003, 8320739432, 10400924290, 14561294006, 20801848580, 29122588012, 36403235015, 41603697160, 58245176024, 72806470030, 145612940060, 291225880120]

約数ペア:

[(1, 291225880120), (2, 145612940060), (4, 72806470030), (5, 58245176024), (7, 41603697160), (8, 36403235015), (10, 29122588012), (14, 20801848580), (20, 14561294006), (28, 10400924290), (35, 8320739432), (40, 7280647003), (56, 5200462145), (70, 4160369716), (140, 2080184858), (197, 1478303960), (280, 1040092429), (394, 739151980), (788, 369575990), (985, 295660792), (1379, 211186280), (1576, 184787995), (1861, 156488920), (1970, 147830396), (2758, 105593140), (2837, 102652760), (3722, 78244460), (3940, 73915198), (5516, 52796570), (5674, 51326380), (6895, 42237256), (7444, 39122230), (7880, 36957599), (9305, 31297784), (11032, 26398285), (11348, 25663190), (13027, 22355560), (13790, 21118628), (14185, 20530552), (14888, 19561115), (18610, 15648892), (19859, 14664680), (22696, 12831595), (26054, 11177780), (27580, 10559314), (28370, 10265276), (37220, 7824446), (39718, 7332340), (52108, 5588890), (55160, 5279657), (56740, 5132638), (65135, 4471112), (74440, 3912223), (79436, 3666170), (99295, 2932936), (104216, 2794445), (113480, 2566319), (130270, 2235556), (158872, 1833085), (198590, 1466468), (260540, 1117778), (366617, 794360), (397180, 733234), (521080, 558889)]