1285338320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:469

約数の個数: 160

約数和(自身を含む): 3507204096

約数和(自身を除く): 2221865776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 191, 197, 244, 280, 305, 382, 394, 427, 488, 560, 610, 764, 788, 854, 955, 976, 985, 1220, 1337, 1379, 1528, 1576, 1708, 1910, 1970, 2135, 2440, 2674, 2758, 3056, 3152, 3416, 3820, 3940, 4270, 4880, 5348, 5516, 6685, 6832, 6895, 7640, 7880, 8540, 10696, 11032, 11651, 12017, 13370, 13790, 15280, 15760, 17080, 21392, 22064, 23302, 24034, 26740, 27580, 34160, 37627, 46604, 48068, 53480, 55160, 58255, 60085, 75254, 81557, 84119, 93208, 96136, 106960, 110320, 116510, 120170, 150508, 163114, 168238, 186416, 188135, 192272, 233020, 240340, 263389, 301016, 326228, 336476, 376270, 407785, 420595, 466040, 480680, 526778, 602032, 652456, 672952, 752540, 815570, 841190, 932080, 961360, 1053556, 1304912, 1316945, 1345904, 1505080, 1631140, 1682380, 2107112, 2295247, 2633890, 3010160, 3262280, 3364760, 4214224, 4590494, 5267780, 6524560, 6729520, 9180988, 10535560, 11476235, 16066729, 18361976, 21071120, 22952470, 32133458, 36723952, 45904940, 64266916, 80333645, 91809880, 128533832, 160667290, 183619760, 257067664, 321334580, 642669160, 1285338320]

約数ペア:

[(1, 1285338320), (2, 642669160), (4, 321334580), (5, 257067664), (7, 183619760), (8, 160667290), (10, 128533832), (14, 91809880), (16, 80333645), (20, 64266916), (28, 45904940), (35, 36723952), (40, 32133458), (56, 22952470), (61, 21071120), (70, 18361976), (80, 16066729), (112, 11476235), (122, 10535560), (140, 9180988), (191, 6729520), (197, 6524560), (244, 5267780), (280, 4590494), (305, 4214224), (382, 3364760), (394, 3262280), (427, 3010160), (488, 2633890), (560, 2295247), (610, 2107112), (764, 1682380), (788, 1631140), (854, 1505080), (955, 1345904), (976, 1316945), (985, 1304912), (1220, 1053556), (1337, 961360), (1379, 932080), (1528, 841190), (1576, 815570), (1708, 752540), (1910, 672952), (1970, 652456), (2135, 602032), (2440, 526778), (2674, 480680), (2758, 466040), (3056, 420595), (3152, 407785), (3416, 376270), (3820, 336476), (3940, 326228), (4270, 301016), (4880, 263389), (5348, 240340), (5516, 233020), (6685, 192272), (6832, 188135), (6895, 186416), (7640, 168238), (7880, 163114), (8540, 150508), (10696, 120170), (11032, 116510), (11651, 110320), (12017, 106960), (13370, 96136), (13790, 93208), (15280, 84119), (15760, 81557), (17080, 75254), (21392, 60085), (22064, 58255), (23302, 55160), (24034, 53480), (26740, 48068), (27580, 46604), (34160, 37627)]