990542840

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 256

約数和(自身を含む): 2813184000

約数和(自身を除く): 1822641160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 43, 46, 49, 56, 70, 73, 86, 92, 98, 115, 140, 146, 161, 172, 184, 196, 215, 230, 245, 280, 292, 301, 322, 343, 344, 365, 392, 430, 460, 490, 511, 584, 602, 644, 686, 730, 805, 860, 920, 980, 989, 1022, 1127, 1204, 1288, 1372, 1460, 1505, 1610, 1679, 1715, 1720, 1960, 1978, 2044, 2107, 2254, 2408, 2555, 2744, 2920, 3010, 3139, 3220, 3358, 3430, 3577, 3956, 4088, 4214, 4508, 4945, 5110, 5635, 6020, 6278, 6440, 6716, 6860, 6923, 7154, 7889, 7912, 8395, 8428, 9016, 9890, 10220, 10535, 11270, 11753, 12040, 12556, 13432, 13720, 13846, 14308, 14749, 15695, 15778, 16790, 16856, 17885, 19780, 20440, 21070, 21973, 22540, 23506, 25039, 25112, 27692, 28616, 29498, 31390, 31556, 33580, 34615, 35770, 39445, 39560, 42140, 43946, 45080, 47012, 48461, 50078, 55384, 58765, 58996, 62780, 63112, 67160, 69230, 71540, 72197, 73745, 78890, 82271, 84280, 87892, 94024, 96922, 100156, 109865, 117530, 117992, 125195, 125560, 138460, 143080, 144394, 147490, 153811, 157780, 164542, 175784, 193844, 200312, 219730, 235060, 242305, 250390, 276920, 288788, 294980, 307622, 315560, 329084, 339227, 360985, 387688, 411355, 439460, 470120, 484610, 500780, 505379, 575897, 577576, 589960, 615244, 658168, 678454, 721970, 769055, 822710, 878920, 969220, 1001560, 1010758, 1076677, 1151794, 1230488, 1356908, 1443940, 1538110, 1645420, 1696135, 1938440, 2021516, 2153354, 2303588, 2526895, 2713816, 2879485, 2887880, 3076220, 3290840, 3392270, 3537653, 4043032, 4306708, 4607176, 5053790, 5383385, 5758970, 6152440, 6784540, 7075306, 8613416, 10107580, 10766770, 11517940, 13569080, 14150612, 17688265, 20215160, 21533540, 23035880, 24763571, 28301224, 35376530, 43067080, 49527142, 70753060, 99054284, 123817855, 141506120, 198108568, 247635710, 495271420, 990542840]

約数ペア:

[(1, 990542840), (2, 495271420), (4, 247635710), (5, 198108568), (7, 141506120), (8, 123817855), (10, 99054284), (14, 70753060), (20, 49527142), (23, 43067080), (28, 35376530), (35, 28301224), (40, 24763571), (43, 23035880), (46, 21533540), (49, 20215160), (56, 17688265), (70, 14150612), (73, 13569080), (86, 11517940), (92, 10766770), (98, 10107580), (115, 8613416), (140, 7075306), (146, 6784540), (161, 6152440), (172, 5758970), (184, 5383385), (196, 5053790), (215, 4607176), (230, 4306708), (245, 4043032), (280, 3537653), (292, 3392270), (301, 3290840), (322, 3076220), (343, 2887880), (344, 2879485), (365, 2713816), (392, 2526895), (430, 2303588), (460, 2153354), (490, 2021516), (511, 1938440), (584, 1696135), (602, 1645420), (644, 1538110), (686, 1443940), (730, 1356908), (805, 1230488), (860, 1151794), (920, 1076677), (980, 1010758), (989, 1001560), (1022, 969220), (1127, 878920), (1204, 822710), (1288, 769055), (1372, 721970), (1460, 678454), (1505, 658168), (1610, 615244), (1679, 589960), (1715, 577576), (1720, 575897), (1960, 505379), (1978, 500780), (2044, 484610), (2107, 470120), (2254, 439460), (2408, 411355), (2555, 387688), (2744, 360985), (2920, 339227), (3010, 329084), (3139, 315560), (3220, 307622), (3358, 294980), (3430, 288788), (3577, 276920), (3956, 250390), (4088, 242305), (4214, 235060), (4508, 219730), (4945, 200312), (5110, 193844), (5635, 175784), (6020, 164542), (6278, 157780), (6440, 153811), (6716, 147490), (6860, 144394), (6923, 143080), (7154, 138460), (7889, 125560), (7912, 125195), (8395, 117992), (8428, 117530), (9016, 109865), (9890, 100156), (10220, 96922), (10535, 94024), (11270, 87892), (11753, 84280), (12040, 82271), (12556, 78890), (13432, 73745), (13720, 72197), (13846, 71540), (14308, 69230), (14749, 67160), (15695, 63112), (15778, 62780), (16790, 58996), (16856, 58765), (17885, 55384), (19780, 50078), (20440, 48461), (21070, 47012), (21973, 45080), (22540, 43946), (23506, 42140), (25039, 39560), (25112, 39445), (27692, 35770), (28616, 34615), (29498, 33580), (31390, 31556)]