20438829824

素因数分解:

$2^8\times 7^2\times {\mathrm{61}}^1\times {\mathrm{26711}}^1$

素因数の和:26802

約数の個数: 108

約数和(自身を含む): 48238506288

約数和(自身を除く): 27799676464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 64, 98, 112, 122, 128, 196, 224, 244, 256, 392, 427, 448, 488, 784, 854, 896, 976, 1568, 1708, 1792, 1952, 2989, 3136, 3416, 3904, 5978, 6272, 6832, 7808, 11956, 12544, 13664, 15616, 23912, 26711, 27328, 47824, 53422, 54656, 95648, 106844, 109312, 186977, 191296, 213688, 373954, 382592, 427376, 747908, 765184, 854752, 1308839, 1495816, 1629371, 1709504, 2617678, 2991632, 3258742, 3419008, 5235356, 5983264, 6517484, 6838016, 10470712, 11405597, 11966528, 13034968, 20941424, 22811194, 23933056, 26069936, 41882848, 45622388, 47866112, 52139872, 79839179, 83765696, 91244776, 104279744, 159678358, 167531392, 182489552, 208559488, 319356716, 335062784, 364979104, 417118976, 638713432, 729958208, 1277426864, 1459916416, 2554853728, 2919832832, 5109707456, 10219414912, 20438829824]

約数ペア:

[(1, 20438829824), (2, 10219414912), (4, 5109707456), (7, 2919832832), (8, 2554853728), (14, 1459916416), (16, 1277426864), (28, 729958208), (32, 638713432), (49, 417118976), (56, 364979104), (61, 335062784), (64, 319356716), (98, 208559488), (112, 182489552), (122, 167531392), (128, 159678358), (196, 104279744), (224, 91244776), (244, 83765696), (256, 79839179), (392, 52139872), (427, 47866112), (448, 45622388), (488, 41882848), (784, 26069936), (854, 23933056), (896, 22811194), (976, 20941424), (1568, 13034968), (1708, 11966528), (1792, 11405597), (1952, 10470712), (2989, 6838016), (3136, 6517484), (3416, 5983264), (3904, 5235356), (5978, 3419008), (6272, 3258742), (6832, 2991632), (7808, 2617678), (11956, 1709504), (12544, 1629371), (13664, 1495816), (15616, 1308839), (23912, 854752), (26711, 765184), (27328, 747908), (47824, 427376), (53422, 382592), (54656, 373954), (95648, 213688), (106844, 191296), (109312, 186977)]