20978187840

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{21487}}^1$

素因数の和:21626

約数の個数: 224

約数和(自身を含む): 74664783360

約数和(自身を除く): 53686595520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 113, 120, 135, 144, 160, 180, 192, 216, 226, 240, 270, 288, 320, 339, 360, 432, 452, 480, 540, 565, 576, 678, 720, 864, 904, 960, 1017, 1080, 1130, 1356, 1440, 1695, 1728, 1808, 2034, 2160, 2260, 2712, 2880, 3051, 3390, 3616, 4068, 4320, 4520, 5085, 5424, 6102, 6780, 7232, 8136, 8640, 9040, 10170, 10848, 12204, 13560, 15255, 16272, 18080, 20340, 21487, 21696, 24408, 27120, 30510, 32544, 36160, 40680, 42974, 48816, 54240, 61020, 64461, 65088, 81360, 85948, 97632, 107435, 108480, 122040, 128922, 162720, 171896, 193383, 195264, 214870, 244080, 257844, 322305, 325440, 343792, 386766, 429740, 488160, 515688, 580149, 644610, 687584, 773532, 859480, 966915, 976320, 1031376, 1160298, 1289220, 1375168, 1547064, 1718960, 1933830, 2062752, 2320596, 2428031, 2578440, 2900745, 3094128, 3437920, 3867660, 4125504, 4641192, 4856062, 5156880, 5801490, 6188256, 6875840, 7284093, 7735320, 9282384, 9712124, 10313760, 11602980, 12140155, 12376512, 14568186, 15470640, 18564768, 19424248, 20627520, 21852279, 23205960, 24280310, 29136372, 30941280, 36420465, 37129536, 38848496, 43704558, 46411920, 48560620, 58272744, 61882560, 65556837, 72840930, 77696992, 87409116, 92823840, 97121240, 109261395, 116545488, 131113674, 145681860, 155393984, 174818232, 185647680, 194242480, 218522790, 233090976, 262227348, 291363720, 327784185, 349636464, 388484960, 437045580, 466181952, 524454696, 582727440, 655568370, 699272928, 776969920, 874091160, 1048909392, 1165454880, 1311136740, 1398545856, 1748182320, 2097818784, 2330909760, 2622273480, 3496364640, 4195637568, 5244546960, 6992729280, 10489093920, 20978187840]

約数ペア:

[(1, 20978187840), (2, 10489093920), (3, 6992729280), (4, 5244546960), (5, 4195637568), (6, 3496364640), (8, 2622273480), (9, 2330909760), (10, 2097818784), (12, 1748182320), (15, 1398545856), (16, 1311136740), (18, 1165454880), (20, 1048909392), (24, 874091160), (27, 776969920), (30, 699272928), (32, 655568370), (36, 582727440), (40, 524454696), (45, 466181952), (48, 437045580), (54, 388484960), (60, 349636464), (64, 327784185), (72, 291363720), (80, 262227348), (90, 233090976), (96, 218522790), (108, 194242480), (113, 185647680), (120, 174818232), (135, 155393984), (144, 145681860), (160, 131113674), (180, 116545488), (192, 109261395), (216, 97121240), (226, 92823840), (240, 87409116), (270, 77696992), (288, 72840930), (320, 65556837), (339, 61882560), (360, 58272744), (432, 48560620), (452, 46411920), (480, 43704558), (540, 38848496), (565, 37129536), (576, 36420465), (678, 30941280), (720, 29136372), (864, 24280310), (904, 23205960), (960, 21852279), (1017, 20627520), (1080, 19424248), (1130, 18564768), (1356, 15470640), (1440, 14568186), (1695, 12376512), (1728, 12140155), (1808, 11602980), (2034, 10313760), (2160, 9712124), (2260, 9282384), (2712, 7735320), (2880, 7284093), (3051, 6875840), (3390, 6188256), (3616, 5801490), (4068, 5156880), (4320, 4856062), (4520, 4641192), (5085, 4125504), (5424, 3867660), (6102, 3437920), (6780, 3094128), (7232, 2900745), (8136, 2578440), (8640, 2428031), (9040, 2320596), (10170, 2062752), (10848, 1933830), (12204, 1718960), (13560, 1547064), (15255, 1375168), (16272, 1289220), (18080, 1160298), (20340, 1031376), (21487, 976320), (21696, 966915), (24408, 859480), (27120, 773532), (30510, 687584), (32544, 644610), (36160, 580149), (40680, 515688), (42974, 488160), (48816, 429740), (54240, 386766), (61020, 343792), (64461, 325440), (65088, 322305), (81360, 257844), (85948, 244080), (97632, 214870), (107435, 195264), (108480, 193383), (122040, 171896), (128922, 162720)]