689143840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:232

約数の個数: 288

約数和(自身を含む): 2115989568

約数和(自身を除く): 1426845728

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 61, 70, 77, 80, 88, 98, 110, 112, 122, 131, 140, 154, 160, 176, 196, 220, 224, 244, 245, 262, 280, 305, 308, 352, 385, 392, 427, 440, 488, 490, 524, 539, 560, 610, 616, 655, 671, 770, 784, 854, 880, 917, 976, 980, 1048, 1078, 1120, 1220, 1232, 1310, 1342, 1441, 1540, 1568, 1708, 1760, 1834, 1952, 1960, 2096, 2135, 2156, 2440, 2464, 2620, 2684, 2695, 2882, 2989, 3080, 3355, 3416, 3668, 3920, 4192, 4270, 4312, 4585, 4697, 4880, 5240, 5368, 5390, 5764, 5978, 6160, 6419, 6710, 6832, 7205, 7336, 7840, 7991, 8540, 8624, 9170, 9394, 9760, 10087, 10480, 10736, 10780, 11528, 11956, 12320, 12838, 13420, 13664, 14410, 14672, 14945, 15982, 17080, 17248, 18340, 18788, 20174, 20960, 21472, 21560, 23056, 23485, 23912, 25676, 26840, 28820, 29344, 29890, 31964, 32095, 32879, 34160, 36680, 37576, 39955, 40348, 43120, 46112, 46970, 47824, 50435, 51352, 53680, 55937, 57640, 59780, 63928, 64190, 65758, 68320, 70609, 73360, 75152, 79910, 80696, 86240, 87901, 93940, 95648, 100870, 102704, 107360, 111874, 115280, 119560, 127856, 128380, 131516, 141218, 146720, 150304, 159820, 161392, 164395, 175802, 187880, 201740, 205408, 223748, 230560, 239120, 255712, 256760, 263032, 279685, 282436, 319640, 322784, 328790, 351604, 353045, 375760, 391559, 403480, 439505, 447496, 478240, 513520, 526064, 559370, 564872, 615307, 639280, 657580, 703208, 706090, 751520, 783118, 806960, 879010, 894992, 1027040, 1052128, 1118740, 1129744, 1230614, 1278560, 1315160, 1406416, 1412180, 1566236, 1613920, 1758020, 1789984, 1957795, 2237480, 2259488, 2461228, 2630320, 2812832, 2824360, 3076535, 3132472, 3516040, 3915590, 4307149, 4474960, 4922456, 5260640, 5648720, 6153070, 6264944, 7032080, 7831180, 8614298, 8949920, 9844912, 11297440, 12306140, 12529888, 14064160, 15662360, 17228596, 19689824, 21535745, 24612280, 31324720, 34457192, 43071490, 49224560, 62649440, 68914384, 86142980, 98449120, 137828768, 172285960, 344571920, 689143840]

約数ペア:

[(1, 689143840), (2, 344571920), (4, 172285960), (5, 137828768), (7, 98449120), (8, 86142980), (10, 68914384), (11, 62649440), (14, 49224560), (16, 43071490), (20, 34457192), (22, 31324720), (28, 24612280), (32, 21535745), (35, 19689824), (40, 17228596), (44, 15662360), (49, 14064160), (55, 12529888), (56, 12306140), (61, 11297440), (70, 9844912), (77, 8949920), (80, 8614298), (88, 7831180), (98, 7032080), (110, 6264944), (112, 6153070), (122, 5648720), (131, 5260640), (140, 4922456), (154, 4474960), (160, 4307149), (176, 3915590), (196, 3516040), (220, 3132472), (224, 3076535), (244, 2824360), (245, 2812832), (262, 2630320), (280, 2461228), (305, 2259488), (308, 2237480), (352, 1957795), (385, 1789984), (392, 1758020), (427, 1613920), (440, 1566236), (488, 1412180), (490, 1406416), (524, 1315160), (539, 1278560), (560, 1230614), (610, 1129744), (616, 1118740), (655, 1052128), (671, 1027040), (770, 894992), (784, 879010), (854, 806960), (880, 783118), (917, 751520), (976, 706090), (980, 703208), (1048, 657580), (1078, 639280), (1120, 615307), (1220, 564872), (1232, 559370), (1310, 526064), (1342, 513520), (1441, 478240), (1540, 447496), (1568, 439505), (1708, 403480), (1760, 391559), (1834, 375760), (1952, 353045), (1960, 351604), (2096, 328790), (2135, 322784), (2156, 319640), (2440, 282436), (2464, 279685), (2620, 263032), (2684, 256760), (2695, 255712), (2882, 239120), (2989, 230560), (3080, 223748), (3355, 205408), (3416, 201740), (3668, 187880), (3920, 175802), (4192, 164395), (4270, 161392), (4312, 159820), (4585, 150304), (4697, 146720), (4880, 141218), (5240, 131516), (5368, 128380), (5390, 127856), (5764, 119560), (5978, 115280), (6160, 111874), (6419, 107360), (6710, 102704), (6832, 100870), (7205, 95648), (7336, 93940), (7840, 87901), (7991, 86240), (8540, 80696), (8624, 79910), (9170, 75152), (9394, 73360), (9760, 70609), (10087, 68320), (10480, 65758), (10736, 64190), (10780, 63928), (11528, 59780), (11956, 57640), (12320, 55937), (12838, 53680), (13420, 51352), (13664, 50435), (14410, 47824), (14672, 46970), (14945, 46112), (15982, 43120), (17080, 40348), (17248, 39955), (18340, 37576), (18788, 36680), (20174, 34160), (20960, 32879), (21472, 32095), (21560, 31964), (23056, 29890), (23485, 29344), (23912, 28820), (25676, 26840)]