1981939680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{557}}^1$

素因数の和:938

約数の個数: 288

約数和(自身を含む): 7765377984

約数和(自身を除く): 5783438304

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 353, 360, 420, 480, 504, 557, 560, 630, 672, 706, 720, 840, 1008, 1059, 1114, 1120, 1260, 1412, 1440, 1671, 1680, 1765, 2016, 2118, 2228, 2471, 2520, 2785, 2824, 3177, 3342, 3360, 3530, 3899, 4236, 4456, 4942, 5013, 5040, 5295, 5570, 5648, 6354, 6684, 7060, 7413, 7798, 8355, 8472, 8912, 9884, 10026, 10080, 10590, 11140, 11296, 11697, 12355, 12708, 13368, 14120, 14826, 15596, 15885, 16710, 16944, 17824, 19495, 19768, 20052, 21180, 22239, 22280, 23394, 24710, 25065, 25416, 26736, 28240, 29652, 31192, 31770, 33420, 33888, 35091, 37065, 38990, 39536, 40104, 42360, 44478, 44560, 46788, 49420, 50130, 50832, 53472, 56480, 58485, 59304, 62384, 63540, 66840, 70182, 74130, 77980, 79072, 80208, 84720, 88956, 89120, 93576, 98840, 100260, 101664, 111195, 116970, 118608, 124768, 127080, 133680, 140364, 148260, 155960, 160416, 169440, 175455, 177912, 187152, 196621, 197680, 200520, 222390, 233940, 237216, 254160, 267360, 280728, 296520, 311920, 350910, 355824, 374304, 393242, 395360, 401040, 444780, 467880, 508320, 561456, 589863, 593040, 623840, 701820, 711648, 786484, 802080, 889560, 935760, 983105, 1122912, 1179726, 1186080, 1376347, 1403640, 1572968, 1769589, 1779120, 1871520, 1966210, 2359452, 2752694, 2807280, 2949315, 3145936, 3539178, 3558240, 3932420, 4129041, 4718904, 5505388, 5614560, 5898630, 6291872, 6881735, 7078356, 7864840, 8258082, 8847945, 9437808, 11010776, 11797260, 12387123, 13763470, 14156712, 15729680, 16516164, 17695890, 18875616, 20645205, 22021552, 23594520, 24774246, 27526940, 28313424, 31459360, 33032328, 35391780, 41290410, 44043104, 47189040, 49548492, 55053880, 56626848, 61935615, 66064656, 70783560, 82580820, 94378080, 99096984, 110107760, 123871230, 132129312, 141567120, 165161640, 198193968, 220215520, 247742460, 283134240, 330323280, 396387936, 495484920, 660646560, 990969840, 1981939680]

約数ペア:

[(1, 1981939680), (2, 990969840), (3, 660646560), (4, 495484920), (5, 396387936), (6, 330323280), (7, 283134240), (8, 247742460), (9, 220215520), (10, 198193968), (12, 165161640), (14, 141567120), (15, 132129312), (16, 123871230), (18, 110107760), (20, 99096984), (21, 94378080), (24, 82580820), (28, 70783560), (30, 66064656), (32, 61935615), (35, 56626848), (36, 55053880), (40, 49548492), (42, 47189040), (45, 44043104), (48, 41290410), (56, 35391780), (60, 33032328), (63, 31459360), (70, 28313424), (72, 27526940), (80, 24774246), (84, 23594520), (90, 22021552), (96, 20645205), (105, 18875616), (112, 17695890), (120, 16516164), (126, 15729680), (140, 14156712), (144, 13763470), (160, 12387123), (168, 11797260), (180, 11010776), (210, 9437808), (224, 8847945), (240, 8258082), (252, 7864840), (280, 7078356), (288, 6881735), (315, 6291872), (336, 5898630), (353, 5614560), (360, 5505388), (420, 4718904), (480, 4129041), (504, 3932420), (557, 3558240), (560, 3539178), (630, 3145936), (672, 2949315), (706, 2807280), (720, 2752694), (840, 2359452), (1008, 1966210), (1059, 1871520), (1114, 1779120), (1120, 1769589), (1260, 1572968), (1412, 1403640), (1440, 1376347), (1671, 1186080), (1680, 1179726), (1765, 1122912), (2016, 983105), (2118, 935760), (2228, 889560), (2471, 802080), (2520, 786484), (2785, 711648), (2824, 701820), (3177, 623840), (3342, 593040), (3360, 589863), (3530, 561456), (3899, 508320), (4236, 467880), (4456, 444780), (4942, 401040), (5013, 395360), (5040, 393242), (5295, 374304), (5570, 355824), (5648, 350910), (6354, 311920), (6684, 296520), (7060, 280728), (7413, 267360), (7798, 254160), (8355, 237216), (8472, 233940), (8912, 222390), (9884, 200520), (10026, 197680), (10080, 196621), (10590, 187152), (11140, 177912), (11296, 175455), (11697, 169440), (12355, 160416), (12708, 155960), (13368, 148260), (14120, 140364), (14826, 133680), (15596, 127080), (15885, 124768), (16710, 118608), (16944, 116970), (17824, 111195), (19495, 101664), (19768, 100260), (20052, 98840), (21180, 93576), (22239, 89120), (22280, 88956), (23394, 84720), (24710, 80208), (25065, 79072), (25416, 77980), (26736, 74130), (28240, 70182), (29652, 66840), (31192, 63540), (31770, 62384), (33420, 59304), (33888, 58485), (35091, 56480), (37065, 53472), (38990, 50832), (39536, 50130), (40104, 49420), (42360, 46788), (44478, 44560)]