20607808

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 112

約数和(自身を含む): 49158144

約数和(自身を除く): 28550336

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 32, 34, 47, 52, 62, 64, 68, 94, 104, 124, 136, 188, 208, 221, 248, 272, 376, 403, 416, 442, 496, 527, 544, 611, 752, 799, 806, 832, 884, 992, 1054, 1088, 1222, 1457, 1504, 1598, 1612, 1768, 1984, 2108, 2444, 2914, 3008, 3196, 3224, 3536, 4216, 4888, 5828, 6392, 6448, 6851, 7072, 8432, 9776, 10387, 11656, 12784, 12896, 13702, 14144, 16864, 18941, 19552, 20774, 23312, 24769, 25568, 25792, 27404, 33728, 37882, 39104, 41548, 46624, 49538, 51136, 54808, 75764, 83096, 93248, 99076, 109616, 151528, 166192, 198152, 219232, 303056, 321997, 332384, 396304, 438464, 606112, 643994, 664768, 792608, 1212224, 1287988, 1585216, 2575976, 5151952, 10303904, 20607808]

約数ペア:

[(1, 20607808), (2, 10303904), (4, 5151952), (8, 2575976), (13, 1585216), (16, 1287988), (17, 1212224), (26, 792608), (31, 664768), (32, 643994), (34, 606112), (47, 438464), (52, 396304), (62, 332384), (64, 321997), (68, 303056), (94, 219232), (104, 198152), (124, 166192), (136, 151528), (188, 109616), (208, 99076), (221, 93248), (248, 83096), (272, 75764), (376, 54808), (403, 51136), (416, 49538), (442, 46624), (496, 41548), (527, 39104), (544, 37882), (611, 33728), (752, 27404), (799, 25792), (806, 25568), (832, 24769), (884, 23312), (992, 20774), (1054, 19552), (1088, 18941), (1222, 16864), (1457, 14144), (1504, 13702), (1598, 12896), (1612, 12784), (1768, 11656), (1984, 10387), (2108, 9776), (2444, 8432), (2914, 7072), (3008, 6851), (3196, 6448), (3224, 6392), (3536, 5828), (4216, 4888)]