19978688

素因数分解:

$2^6\times {\mathrm{487}}^1\times {\mathrm{641}}^1$

素因数の和:1140

約数の個数: 28

約数和(自身を含む): 39788592

約数和(自身を除く): 19809904

約数列:

[1, 2, 4, 8, 16, 32, 64, 487, 641, 974, 1282, 1948, 2564, 3896, 5128, 7792, 10256, 15584, 20512, 31168, 41024, 312167, 624334, 1248668, 2497336, 4994672, 9989344, 19978688]

約数ペア:

[(1, 19978688), (2, 9989344), (4, 4994672), (8, 2497336), (16, 1248668), (32, 624334), (64, 312167), (487, 41024), (641, 31168), (974, 20512), (1282, 15584), (1948, 10256), (2564, 7792), (3896, 5128)]