20023808

素因数分解:

$2^9\times 7^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:213

約数の個数: 80

約数和(自身を含む): 47270784

約数和(自身を除く): 27246976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 151, 224, 256, 259, 296, 302, 448, 512, 518, 592, 604, 896, 1036, 1057, 1184, 1208, 1792, 2072, 2114, 2368, 2416, 3584, 4144, 4228, 4736, 4832, 5587, 8288, 8456, 9472, 9664, 11174, 16576, 16912, 18944, 19328, 22348, 33152, 33824, 38656, 39109, 44696, 66304, 67648, 77312, 78218, 89392, 132608, 135296, 156436, 178784, 270592, 312872, 357568, 541184, 625744, 715136, 1251488, 1430272, 2502976, 2860544, 5005952, 10011904, 20023808]

約数ペア:

[(1, 20023808), (2, 10011904), (4, 5005952), (7, 2860544), (8, 2502976), (14, 1430272), (16, 1251488), (28, 715136), (32, 625744), (37, 541184), (56, 357568), (64, 312872), (74, 270592), (112, 178784), (128, 156436), (148, 135296), (151, 132608), (224, 89392), (256, 78218), (259, 77312), (296, 67648), (302, 66304), (448, 44696), (512, 39109), (518, 38656), (592, 33824), (604, 33152), (896, 22348), (1036, 19328), (1057, 18944), (1184, 16912), (1208, 16576), (1792, 11174), (2072, 9664), (2114, 9472), (2368, 8456), (2416, 8288), (3584, 5587), (4144, 4832), (4228, 4736)]