20675936

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 42293664

約数和(自身を除く): 21617728

約数列:

[1, 2, 4, 8, 16, 32, 53, 73, 106, 146, 167, 212, 292, 334, 424, 584, 668, 848, 1168, 1336, 1696, 2336, 2672, 3869, 5344, 7738, 8851, 12191, 15476, 17702, 24382, 30952, 35404, 48764, 61904, 70808, 97528, 123808, 141616, 195056, 283232, 390112, 646123, 1292246, 2584492, 5168984, 10337968, 20675936]

約数ペア:

[(1, 20675936), (2, 10337968), (4, 5168984), (8, 2584492), (16, 1292246), (32, 646123), (53, 390112), (73, 283232), (106, 195056), (146, 141616), (167, 123808), (212, 97528), (292, 70808), (334, 61904), (424, 48764), (584, 35404), (668, 30952), (848, 24382), (1168, 17702), (1336, 15476), (1696, 12191), (2336, 8851), (2672, 7738), (3869, 5344)]