20872432

素因数分解:

$2^4\times 7^2\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:438

約数の個数: 60

約数和(自身を含む): 47779680

約数和(自身を除く): 26907248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 79, 98, 112, 158, 196, 316, 337, 392, 553, 632, 674, 784, 1106, 1264, 1348, 2212, 2359, 2696, 3871, 4424, 4718, 5392, 7742, 8848, 9436, 15484, 16513, 18872, 26623, 30968, 33026, 37744, 53246, 61936, 66052, 106492, 132104, 186361, 212984, 264208, 372722, 425968, 745444, 1304527, 1490888, 2609054, 2981776, 5218108, 10436216, 20872432]

約数ペア:

[(1, 20872432), (2, 10436216), (4, 5218108), (7, 2981776), (8, 2609054), (14, 1490888), (16, 1304527), (28, 745444), (49, 425968), (56, 372722), (79, 264208), (98, 212984), (112, 186361), (158, 132104), (196, 106492), (316, 66052), (337, 61936), (392, 53246), (553, 37744), (632, 33026), (674, 30968), (784, 26623), (1106, 18872), (1264, 16513), (1348, 15484), (2212, 9436), (2359, 8848), (2696, 7742), (3871, 5392), (4424, 4718)]