20285312

素因数分解:

$2^7\times {\mathrm{19}}^2\times {\mathrm{439}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 42748200

約数和(自身を除く): 22462888

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 361, 439, 608, 722, 878, 1216, 1444, 1756, 2432, 2888, 3512, 5776, 7024, 8341, 11552, 14048, 16682, 23104, 28096, 33364, 46208, 56192, 66728, 133456, 158479, 266912, 316958, 533824, 633916, 1067648, 1267832, 2535664, 5071328, 10142656, 20285312]

約数ペア:

[(1, 20285312), (2, 10142656), (4, 5071328), (8, 2535664), (16, 1267832), (19, 1067648), (32, 633916), (38, 533824), (64, 316958), (76, 266912), (128, 158479), (152, 133456), (304, 66728), (361, 56192), (439, 46208), (608, 33364), (722, 28096), (878, 23104), (1216, 16682), (1444, 14048), (1756, 11552), (2432, 8341), (2888, 7024), (3512, 5776)]