20800744

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{487}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 41284800

約数和(自身を除く): 20484056

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 281, 487, 562, 974, 1124, 1948, 2248, 3896, 5339, 9253, 10678, 18506, 21356, 37012, 42712, 74024, 136847, 273694, 547388, 1094776, 2600093, 5200186, 10400372, 20800744]

約数ペア:

[(1, 20800744), (2, 10400372), (4, 5200186), (8, 2600093), (19, 1094776), (38, 547388), (76, 273694), (152, 136847), (281, 74024), (487, 42712), (562, 37012), (974, 21356), (1124, 18506), (1948, 10678), (2248, 9253), (3896, 5339)]