20989912832

素因数分解:

$2^8\times 7^2\times {\mathrm{229}}^1\times {\mathrm{7307}}^1$

素因数の和:7566

約数の個数: 108

約数和(自身を含む): 48957826680

約数和(自身を除く): 27967913848

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 229, 256, 392, 448, 458, 784, 896, 916, 1568, 1603, 1792, 1832, 3136, 3206, 3664, 6272, 6412, 7307, 7328, 11221, 12544, 12824, 14614, 14656, 22442, 25648, 29228, 29312, 44884, 51149, 51296, 58456, 58624, 89768, 102298, 102592, 116912, 179536, 204596, 205184, 233824, 358043, 359072, 409192, 410368, 467648, 716086, 718144, 818384, 935296, 1432172, 1436288, 1636768, 1673303, 1870592, 2864344, 2872576, 3273536, 3346606, 5728688, 6547072, 6693212, 11457376, 11713121, 13094144, 13386424, 22914752, 23426242, 26772848, 45829504, 46852484, 53545696, 81991847, 91659008, 93704968, 107091392, 163983694, 187409936, 214182784, 327967388, 374819872, 428365568, 655934776, 749639744, 1311869552, 1499279488, 2623739104, 2998558976, 5247478208, 10494956416, 20989912832]

約数ペア:

[(1, 20989912832), (2, 10494956416), (4, 5247478208), (7, 2998558976), (8, 2623739104), (14, 1499279488), (16, 1311869552), (28, 749639744), (32, 655934776), (49, 428365568), (56, 374819872), (64, 327967388), (98, 214182784), (112, 187409936), (128, 163983694), (196, 107091392), (224, 93704968), (229, 91659008), (256, 81991847), (392, 53545696), (448, 46852484), (458, 45829504), (784, 26772848), (896, 23426242), (916, 22914752), (1568, 13386424), (1603, 13094144), (1792, 11713121), (1832, 11457376), (3136, 6693212), (3206, 6547072), (3664, 5728688), (6272, 3346606), (6412, 3273536), (7307, 2872576), (7328, 2864344), (11221, 1870592), (12544, 1673303), (12824, 1636768), (14614, 1436288), (14656, 1432172), (22442, 935296), (25648, 818384), (29228, 718144), (29312, 716086), (44884, 467648), (51149, 410368), (51296, 409192), (58456, 359072), (58624, 358043), (89768, 233824), (102298, 205184), (102592, 204596), (116912, 179536)]