20304256

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 128

約数和(自身を含む): 51701760

約数和(自身を除く): 31397504

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 31, 32, 34, 43, 56, 62, 64, 68, 86, 112, 119, 124, 128, 136, 172, 217, 224, 238, 248, 272, 301, 344, 434, 448, 476, 496, 527, 544, 602, 688, 731, 868, 896, 952, 992, 1054, 1088, 1204, 1333, 1376, 1462, 1736, 1904, 1984, 2108, 2176, 2408, 2666, 2752, 2924, 3472, 3689, 3808, 3968, 4216, 4816, 5117, 5332, 5504, 5848, 6944, 7378, 7616, 8432, 9331, 9632, 10234, 10664, 11696, 13888, 14756, 15232, 16864, 18662, 19264, 20468, 21328, 22661, 23392, 27776, 29512, 33728, 37324, 38528, 40936, 42656, 45322, 46784, 59024, 67456, 74648, 81872, 85312, 90644, 93568, 118048, 149296, 158627, 163744, 170624, 181288, 236096, 298592, 317254, 327488, 362576, 472192, 597184, 634508, 654976, 725152, 1194368, 1269016, 1450304, 2538032, 2900608, 5076064, 10152128, 20304256]

約数ペア:

[(1, 20304256), (2, 10152128), (4, 5076064), (7, 2900608), (8, 2538032), (14, 1450304), (16, 1269016), (17, 1194368), (28, 725152), (31, 654976), (32, 634508), (34, 597184), (43, 472192), (56, 362576), (62, 327488), (64, 317254), (68, 298592), (86, 236096), (112, 181288), (119, 170624), (124, 163744), (128, 158627), (136, 149296), (172, 118048), (217, 93568), (224, 90644), (238, 85312), (248, 81872), (272, 74648), (301, 67456), (344, 59024), (434, 46784), (448, 45322), (476, 42656), (496, 40936), (527, 38528), (544, 37324), (602, 33728), (688, 29512), (731, 27776), (868, 23392), (896, 22661), (952, 21328), (992, 20468), (1054, 19264), (1088, 18662), (1204, 16864), (1333, 15232), (1376, 14756), (1462, 13888), (1736, 11696), (1904, 10664), (1984, 10234), (2108, 9632), (2176, 9331), (2408, 8432), (2666, 7616), (2752, 7378), (2924, 6944), (3472, 5848), (3689, 5504), (3808, 5332), (3968, 5117), (4216, 4816)]